Best Supplements for Menopause and Perimenopause: What Actually Works

      "text": "Best is a compound that works through multiple biological pathways. Research shows it supports various aspects of health through its bioactive properties."

      "text": "Typical dosages range from the amounts used in clinical studies. Always consult with a healthcare provider to determine the right dose for your individual needs."

      "text": "Best has been studied for multiple health benefits. Clinical research demonstrates effects on various body systems and functions."

      "text": "Best is generally well-tolerated, but some people may experience mild effects. Consult a healthcare provider if you have concerns or pre-existing conditions."

      "text": "Best can often be combined with other supplements, but interactions are possible. Check with your healthcare provider about your specific supplement regimen."

      "text": "Effects can vary by individual and the specific benefit being measured. Some effects may be noticed within days, while others may take weeks of consistent use."

      "text": "Individuals looking to support the health areas addressed by Best may benefit. Those with specific health concerns should consult a healthcare provider first."

Introduction

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Menopause is not a disease. It is a biological certainty — every woman who lives long enough will experience it. And yet, for something so universal, the experience remains remarkably isolating for millions of women. The hot flashes that strike without warning in a meeting. The insomnia that turns 3 AM into the loneliest hour. The brain fog that makes you question your own competence. The joint pain, the mood swings, the anxiety that seems to come from nowhere. These are not minor inconveniences. For many women, the menopausal transition fundamentally disrupts daily life for years.

The numbers tell a striking story. Roughly 1.3 billion women worldwide will be postmenopausal by 2030. In the United States alone, approximately 6,000 women reach menopause every single day. About 75% of them will experience hot flashes, and for roughly 25%, those hot flashes will be severe enough to significantly affect quality of life. The average duration of vasomotor symptoms is 7.4 years, though some women experience them for more than a decade.

It is no surprise, then, that the menopause supplement market has exploded. Valued at approximately USD 18.7 billion in 2025 and projected to reach USD 30 billion by 2034, the menopause wellness industry is one of the fastest-growing segments in all of health and nutrition. Dietary supplements dominate this market, accounting for more than 94% of revenue. Every pharmacy shelf and wellness website overflows with products promising relief: black cohosh for hot flashes, soy for hormonal balance, evening primrose for night sweats, and dozens more.

The problem is that evidence varies wildly. Some of these supplements have real clinical backing — multiple randomized controlled trials, meta-analyses, Cochrane reviews. Others rest on centuries of traditional use but almost no modern research. And some are essentially marketing in a capsule. Women navigating this landscape deserve better than vague promises and cherry-picked studies. They deserve a clear-eyed assessment of what works, what might work, and what probably does not.

This article provides exactly that. We have reviewed the clinical literature for every major menopause supplement, organized them into evidence tiers, and included specific study data — effect sizes, doses, durations, and PubMed citations — so you can have an informed conversation with your healthcare provider rather than relying on a label’s marketing copy.

A note before we begin: many women feel dismissed by the medical system when they raise menopause symptoms. If that has been your experience, you are not imagining things, and your symptoms are real. This article takes them seriously.

Watch Our Video Review

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Spontaneous Thoughts on Body Signals: 10 Signs of Perimenopause and Menopause That Supplements Might Help

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Before diving into specific supplements, it helps to recognize the range of symptoms that the menopausal transition can produce. Many women experience only a few; some experience most of them. All of them have a hormonal basis, and all of them have at least some supplement research behind them.

1. Hot flashes and night sweats. The hallmark symptoms. A sudden wave of heat that rises through the chest, neck, and face, often accompanied by sweating and sometimes followed by chills. Night sweats are simply hot flashes that happen during sleep, and they can drench bedsheets and destroy sleep quality. These are vasomotor symptoms, driven by fluctuations in estrogen that affect the brain’s thermoregulatory center.

2. Sleep disruption. Even beyond night sweats, sleep architecture changes during the menopausal transition. Many women report difficulty falling asleep, staying asleep, or feeling rested upon waking. Declining estrogen and progesterone both play roles, as progesterone has natural sedative properties.

3. Mood changes, anxiety, and irritability. Estrogen influences serotonin, dopamine, and norepinephrine — the neurotransmitters that regulate mood. As estrogen fluctuates wildly during perimenopause and then drops permanently during menopause, mood instability often follows. This is not “just stress.” It is neurochemistry.

4. Brain fog and cognitive changes. Difficulty concentrating, word-finding problems, and memory lapses are commonly reported during the menopausal transition. Emerging research suggests that estrogen plays a direct role in brain energy metabolism, and its decline may affect cognitive processing speed and verbal memory.

5. Vaginal dryness and urogenital changes. As estrogen levels fall, vaginal tissue thins, loses elasticity, and produces less lubrication. This can cause discomfort during intercourse, increased urinary tract infections, and general irritation. These changes are collectively known as the genitourinary syndrome of menopause (GSM).

6. Bone density loss. Estrogen is a critical regulator of bone remodeling. Women can lose up to 20% of their bone density in the first 5-7 years after menopause. This is not a symptom you feel until a fracture occurs, making prevention essential.

7. Joint pain and stiffness. Often overlooked, musculoskeletal symptoms are reported by up to 50% of menopausal women. Estrogen has anti-inflammatory effects on joint tissue, and its decline can contribute to arthralgias.

8. Weight changes and metabolic shifts. The redistribution of body fat from hips and thighs to the abdomen is driven partly by declining estrogen, which shifts metabolism toward greater insulin resistance and central adiposity.

9. Decreased libido. Declining estrogen, testosterone, and DHEA all contribute to reduced sexual desire, which affects roughly 40% of postmenopausal women.

10. Heart palpitations. Less commonly discussed, but estrogen fluctuations can affect cardiac rhythm, leading to episodes of rapid or irregular heartbeat that are usually benign but understandably alarming.

Understanding the Hormonal Transition

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To understand why supplements might help — and what their limitations are — you need to understand what is actually happening to your hormones during perimenopause and menopause.

The Three Key Hormones

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Estrogen is the primary female sex hormone, and its decline is the central event of menopause. But “estrogen” is actually a family of three hormones: estradiol (E2, the most potent and prevalent before menopause), estrone (E1, the dominant form after menopause), and estriol (E3, primarily relevant during pregnancy). Estradiol is the one that matters most for menopausal symptoms.

Progesterone is produced by the corpus luteum after ovulation. As ovulation becomes irregular during perimenopause, progesterone production becomes erratic and eventually ceases. This is significant because progesterone has calming, sleep-promoting effects. Its decline often precedes the decline in estrogen, which is why many women experience sleep disruption and anxiety as some of the earliest perimenopausal symptoms.

Testosterone is produced in smaller amounts by the ovaries and adrenal glands. It declines gradually throughout a woman’s reproductive years, dropping by roughly 50% between the ages of 20 and 40. Unlike estrogen, testosterone does not cliff-drop at menopause, but its continued gradual decline contributes to fatigue, reduced muscle mass, and decreased libido.

The Timeline

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Perimenopause typically begins 8-10 years before menopause. For most women, this means the mid-40s, though it can start as early as the mid-30s or as late as the early 50s. The average American woman reaches menopause — defined as 12 consecutive months without a menstrual period — at age 51.

The transition unfolds in stages:

Early perimenopause (typically ages 40-44): Menstrual cycles may become slightly irregular. Progesterone begins declining. Estrogen levels may actually spike unpredictably before dipping, creating a hormonal rollercoaster. Many women notice subtle changes in sleep quality, mood, or cycle length during this phase.

Late perimenopause (typically late 40s to early 50s): Cycles become more irregular, with longer gaps between periods. Estrogen fluctuations become more dramatic — sometimes surging to levels higher than during reproductive years, then crashing. Hot flashes typically begin during this phase. FSH (follicle-stimulating hormone) levels rise as the pituitary gland works harder to stimulate failing ovaries.

Menopause: The final menstrual period. This is identified retrospectively after 12 months of amenorrhea. Estradiol levels settle at roughly 10-20 pg/mL (compared to 30-400 pg/mL during reproductive years). FSH levels remain permanently elevated above 30 mIU/mL.

Postmenopause: Everything after. Hormone levels restabilize at their permanently low baseline. Vasomotor symptoms may continue for years — in some women, for decades. The most rapid bone loss occurs in the first 5-7 years of postmenopause.

Understanding this timeline matters for supplement selection. Some supplements (like vitex/chasteberry) work best during perimenopause when cycles are still present. Others (like calcium and vitamin D) become most critical at and after menopause. And some (like black cohosh) have been studied across the entire transition.

Tier 1: Strongest Evidence

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These supplements have multiple randomized controlled trials, meta-analyses, or systematic reviews supporting their use for menopause symptoms. The evidence is not perfect, but it is the best available among non-prescription options.

Black Cohosh (Cimicifuga racemosa)

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What it is: A flowering plant native to North America, used by Indigenous peoples for centuries. The root and rhizome contain triterpene glycosides, which are believed to be the primary active compounds.

What the evidence shows: Black cohosh is the single most studied herbal supplement for menopausal hot flashes. A 2023 meta-analysis published in Menopause analyzed 22 articles covering 2,310 menopausal women and found that black cohosh extracts were associated with significant improvements in hot flashes (Hedges’ g = 0.315, 95% CI: 0.107 to 0.524, P = 0.003) compared with placebo (PMID: 37192826). The dropout rate was similar to placebo, indicating good tolerability.

The 2012 Cochrane systematic review (PMID: 22972105) was more conservative, reviewing 16 RCTs with 2,027 women and finding no significant difference between black cohosh and placebo in the frequency of hot flushes (mean difference: 0.07 flushes per day across three trials). However, the Cochrane authors noted significant heterogeneity in study quality and extract standardization, and several trials included in the analysis used non-standardized preparations.

A 2020 meta-analysis focusing specifically on the standardized isopropanolic extract (iCR, sold as Remifemin) found stronger effects, with significant reductions in the Kupperman Menopausal Index and the Menopause Rating Scale (MRS). The Spanish Menopause Society issued a 2022 consensus statement (PMID: 35403534) concluding that 40 mg/day of black cohosh achieves significant reduction in hot flushes, particularly in women with intense symptoms.

How it works: The mechanism is not fully understood. Black cohosh does not appear to act as a phytoestrogen — it does not bind to classical estrogen receptors or affect estrogen-regulated serum markers. Current hypotheses include activity at serotonin receptors (5-HT7, 5-HT1A, and 5-HT1D), dopaminergic activity, and modulation of the opioidergic system. This non-estrogenic mechanism is actually reassuring for women concerned about hormone-sensitive conditions.

Dose: 20-40 mg daily of standardized extract (equivalent to the whole-root preparation). Most clinical trials use the isopropanolic extract (iCR/Remifemin) or the ethanolic extract (BNO 1055). Allow 8-12 weeks for full effect.

Safety: The question of liver toxicity has dogged black cohosh for years. Case reports have described hepatic injury, including rare instances of liver failure requiring transplantation. However, a meta-analysis of five randomized, double-blind controlled trials found no evidence that standardized black cohosh extract has any adverse effect on liver function (PMID: 21228727). Investigations by Health Canada found that 5 out of 6 reported liver toxicity cases did not contain authentic black cohosh, suggesting product adulteration rather than inherent toxicity. The current consensus is that the risk is very low with authenticated, standardized products, but women with pre-existing liver conditions should exercise caution and monitor liver function.

Siberian Rhubarb Extract (ERr 731)

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What it is: An extract from Rheum rhaponticum root, developed in Germany and widely prescribed in Europe for menopausal symptoms. It is distinct from culinary rhubarb.

What the evidence shows: ERr 731 has a particularly strong evidence base from European clinical trials. A 12-week double-blind, placebo-controlled trial in 109 perimenopausal women found that ERr 731 significantly reduced the total Menopause Rating Scale (MRS II) score compared to placebo. In a larger open-label study of 252 women, six months of ERr 731 treatment reduced the mean MRS total score from 14.5 points at baseline to 6.5 points — a 55% reduction. A recent systematic review and meta-analysis (PMC: 11144934) confirmed that ERr 731 supplementation significantly reduced MRS scores compared to control therapy across multiple trials.

The most notable aspect of ERr 731 research is the breadth of symptoms it addresses. Unlike some supplements that primarily target hot flashes, ERr 731 has shown benefits across the full range of menopausal complaints measured by the MRS: vasomotor symptoms, psychological symptoms (depressed mood, anxiety, irritability), and physical symptoms (sleep disturbance, joint complaints).

How it works: ERr 731 contains rhaponticin, which is metabolized to rhapontigenin, a compound that acts as a selective agonist for estrogen receptor beta (ER-beta) rather than estrogen receptor alpha (ER-alpha). This selectivity is clinically meaningful: ER-alpha mediates the proliferative effects of estrogen on breast and uterine tissue, while ER-beta mediates many of the beneficial effects on the brain, bone, and cardiovascular system. This selective mechanism means ERr 731 acts more like a selective estrogen receptor modulator (SERM) than a traditional phytoestrogen.

Safety: Safety data are reassuring. A long-term clinical study demonstrated no endometrial hyperplasia. A large pharmacoepidemiological study (PMC: 12086110) found that ERr 731 was not associated with an increased risk of breast cancer diagnosis compared to women without ERr 731 or women receiving HRT.

Dose: 4 mg daily of the standardized extract.

Soy Isoflavones

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What they are: Phytoestrogens found naturally in soybeans and soy products. The key isoflavones are genistein, daidzein, and glycitein. They are structurally similar to estradiol and can bind to estrogen receptors, though with much weaker activity.

What the evidence shows: Soy isoflavones have been studied extensively. A meta-analysis of 13 RCTs (PMID: 22433977) found that supplementation with a median dose of 54 mg aglycone equivalents for 6 weeks to 12 months significantly reduced hot flash frequency by 20.6% and severity by 26.2% compared to placebo. Notably, supplements providing more than 18.8 mg of genistein were more than twice as potent at reducing hot flash frequency as lower-genistein preparations.

More recent systematic reviews, including a 2025 analysis (PMC: 12296567) of 12 studies (10 double-blind RCTs and two open-label studies), have largely confirmed these findings, though with some variability across trials. The effect size is modest compared to HRT but clinically meaningful for many women, particularly those with mild-to-moderate symptoms.

An important nuance: roughly 30-50% of people harbor gut bacteria that can convert daidzein into equol, a metabolite with significantly stronger estrogenic activity than daidzein itself. “Equol producers” may experience greater benefits from soy isoflavones, which could partly explain the inconsistency across clinical trials. This also helps explain the observation that Asian women, who have higher rates of equol production (likely from lifelong soy consumption), report fewer menopausal symptoms on average.

How they work: Soy isoflavones are selective estrogen receptor modulators. When estrogen levels are high, they can weakly antagonize estrogen action. When estrogen levels are low (as in menopause), they provide mild estrogenic stimulation by binding to estrogen receptors. They preferentially bind ER-beta over ER-alpha, similar to ERr 731.

Dose: 40-80 mg of isoflavone aglycone equivalents per day, with higher genistein content preferred. Effects typically emerge after 6-12 weeks.

Safety: The phytoestrogen safety debate is addressed in detail later in this article. In brief, population-level data from Asian countries with high soy consumption generally shows no increased breast cancer risk — and possibly reduced risk. However, women with ER-positive breast cancer should consult their oncologist before supplementing with concentrated isoflavone extracts, as some laboratory data suggest genistein can stimulate ER-positive cell growth at low concentrations.

Calcium + Vitamin D3

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What they are: Calcium is the most abundant mineral in the body and the primary structural component of bone. Vitamin D3 (cholecalciferol) is essential for calcium absorption and bone metabolism.

What the evidence shows: This combination has the strongest evidence base of any supplement for postmenopausal bone health. An updated meta-analysis from the National Osteoporosis Foundation (PMID: 26510847) found that calcium plus vitamin D supplementation produced a significant 15% reduction in total fracture risk and a 30% reduction in hip fracture risk. A more recent 2025 meta-analysis (PMC: 12506016) confirmed significant improvements in bone mineral density at the lumbar spine, femoral neck, and total body in postmenopausal women with osteoporosis.

The evidence is strongest for women who are vitamin D deficient (a common finding — an estimated 40-50% of postmenopausal women have insufficient vitamin D levels) and for those with inadequate dietary calcium intake. Doses of 800-2,000 IU of vitamin D daily have been associated with the greatest benefit, particularly in populations with baseline deficiency.

Combined exercise and calcium/vitamin D supplementation may produce additive benefits on bone mineral density in postmenopausal women, making the combination of supplementation and weight-bearing exercise the foundation of non-pharmacological bone protection.

Dose: Calcium: 1,000-1,200 mg daily from all sources (diet plus supplements). Most women get 600-800 mg from food, so supplementation of 400-600 mg is typically sufficient. Taking more than 500 mg at one time reduces absorption, so split doses are recommended. Vitamin D3: 1,000-2,000 IU daily for most women, though individuals with confirmed deficiency may need higher doses under medical supervision.

Safety: Calcium supplementation has raised concerns about cardiovascular risk, but the most current evidence suggests that supplementation up to 1,200 mg/day from combined dietary and supplemental sources does not increase cardiovascular events. The National Osteoporosis Foundation and the American Society for Preventive Cardiology issued a joint statement in 2016 concluding that calcium supplementation (up to the recommended upper limit) is safe from a cardiovascular standpoint.

Tier 2: Moderate Evidence

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These supplements have some RCT support but with smaller sample sizes, fewer trials, or more inconsistent results. They are reasonable to try, particularly for specific symptom profiles, but expectations should be calibrated accordingly.

Red Clover Isoflavones

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What they are: Red clover (Trifolium pratense) contains four primary isoflavones: biochanin A, formononetin, genistein, and daidzein. Compared to soy, red clover has a broader range of isoflavone types.

What the evidence shows: A meta-analysis of eight trials (PMC: 8069620) found a statistically significant reduction in daily hot flush frequency of 1.73 flushes per day in women taking red clover compared to placebo. However, the clinical significance of this reduction has been debated. Subgroup analysis revealed that the benefit was most pronounced in postmenopausal women with five or more hot flashes per day, at doses of 80 mg/day or higher of isoflavones, with 12 weeks of treatment, and with formulations containing a higher proportion of biochanin A.

Another meta-analysis (PMC: 4678495) was less encouraging, finding no statistically significant effect of red clover on hot flash frequency or circulating hormone concentrations. The discrepancy likely reflects differences in the specific extracts studied, doses, and patient populations included.

Red clover has also shown modest benefits for cardiovascular risk markers: a meta-analysis found significant reductions in total cholesterol, though changes in LDL, HDL, and triglycerides were not as consistent.

Dose: 80 mg/day of isoflavone-standardized extract (Promensil is the most studied brand). Allow 12 weeks for effect.

Safety: Generally well tolerated. Considered possibly safe at doses providing up to 80 mg of isoflavones daily for up to 2 years. The same phytoestrogen cautions that apply to soy apply here.

Maca Root (Lepidium meyenii)

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What it is: A cruciferous vegetable native to the Peruvian Andes, traditionally consumed as a food and used medicinally for fertility and vitality.

What the evidence shows: A systematic review (PMID: 21840656) identified four RCTs that met inclusion criteria, and all demonstrated favorable effects on menopausal symptoms as measured by the Kupperman Menopausal Index and the Greene Climacteric Score. A double-blind, placebo-controlled crossover study in early postmenopausal women (PMC: 3614644) found that 3.5 g/day of maca powder for six weeks significantly reduced psychological symptoms (anxiety and depression) and measures of sexual dysfunction. After two months of supplementation, women taking maca showed measurable increases in estradiol and improvements in bone density markers, alongside reductions in FSH and cortisol.

More recently, a 2022 systematic review covering 55 studies (only some of which were human trials) concluded that maca could be effective for a range of conditions, with 55 out of 57 studies reporting a positive effect. However, the authors acknowledged that the total number of rigorous trials, sample sizes, and methodological quality were too limited to draw firm conclusions.

How it works: Unlike soy or red clover, maca does not appear to act directly on estrogen receptors. Instead, it seems to influence the hypothalamic-pituitary-adrenal (HPA) axis, the system that regulates hormone production, mood, stress response, and energy. This adaptogenic mechanism may explain its broader effects on mood, energy, and sexual function without directly changing circulating hormone levels in ways that would raise safety concerns.

Dose: 2,000-3,500 mg/day of gelatinized maca powder, or equivalent extract dose. Red and black maca varieties may have slightly different effect profiles.

Safety: Maca has a long history of safe dietary use in Peru. Clinical trials have reported no serious adverse effects. No estrogenic activity at estrogen receptors means fewer concerns for women with hormone-sensitive conditions, though data is limited.

St. John’s Wort (Hypericum perforatum)

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What it is: A flowering plant whose extract has been used for centuries to treat low mood. The active compounds include hypericin and hyperforin.

What the evidence shows: St. John’s Wort has strong evidence for treating mild-to-moderate depression in general populations, and emerging evidence for menopause-specific depression. A meta-analysis of RCTs (PMID: 36226689) found that St. John’s Wort extract reduced depression scores comparably to SSRIs with fewer side effects.

For menopause specifically, a double-blind RCT (ScienceDirect: S0965229919305631) in postmenopausal women found that 80% of women in the St. John’s Wort group had no depression after treatment, compared to only 5.7% of controls. The treatment also significantly decreased broader menopausal symptoms. Two additional studies in 381 menopausal women confirmed that 8-16 weeks of St. John’s Wort significantly improved psychological symptoms.

One intriguing study combined St. John’s Wort with black cohosh and found that the combination was more effective for menopausal mood symptoms than either supplement alone, suggesting complementary mechanisms.

Dose: 300 mg three times daily of extract standardized to 0.3% hypericin. Effects typically emerge after 4-6 weeks.

Safety and critical caution: St. John’s Wort has 655 known drug interactions, including 298 classified as major. It induces cytochrome P450 enzymes (CYP3A4, CYP2C9, CYP1A2) and P-glycoprotein, which means it can reduce the blood levels and effectiveness of many medications. Key interactions include: oral contraceptives (reduced effectiveness), antidepressants (serotonin syndrome risk), statins, blood thinners (warfarin), immunosuppressants, and some cancer drugs. It should also not be combined with SSRIs or SNRIs due to the risk of serotonin syndrome. This is not a supplement to take casually; it requires coordination with your prescribing physician.

Magnesium

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What it is: An essential mineral involved in over 300 enzymatic reactions in the body, including those governing muscle relaxation, neurotransmitter function, and bone formation.

What the evidence shows: A meta-analysis (PMID: 33865376) of magnesium supplementation for insomnia in older adults found that sleep onset latency decreased by 17.36 minutes compared to placebo, though total sleep time improvement (16.06 minutes) did not reach statistical significance. A more recent RCT showed significant improvements in sleep quality, mood, and activity outcomes with magnesium supplementation compared to placebo. A separate systematic review found that magnesium supplementation beneficially affects depression in adults, with doses of 250 mg/day or less potentially having a stronger effect than higher doses.

For menopause specifically, a NCCTG/Alliance trial (PMC: 4442087) investigating magnesium oxide for menopausal hot flashes found modest reductions in hot flash frequency and severity, though the results did not reach statistical significance. Magnesium’s primary value during menopause lies in its effects on sleep, mood, and muscle relaxation rather than direct hot flash reduction.

There is also an important bone health angle: magnesium is required for the conversion of vitamin D to its active form and for the proper function of parathyroid hormone. Approximately 60% of the body’s magnesium is stored in bone, and deficiency is associated with increased osteoporosis risk.

Dose: 200-400 mg/day of elemental magnesium. Magnesium glycinate and magnesium threonate are preferred for sleep and mood (glycinate for general relaxation, threonate for cognitive effects). Magnesium citrate is well-absorbed but may have a laxative effect at higher doses. Magnesium oxide has poor bioavailability and is not recommended for therapeutic use.

Safety: Well tolerated at recommended doses. The main side effect is loose stools, particularly with citrate and oxide forms. Women with kidney disease should consult their physician before supplementing, as magnesium is renally excreted.

DHEA (Dehydroepiandrosterone) — Intravaginal

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What it is: DHEA is a precursor hormone produced by the adrenal glands that the body converts into estrogen and testosterone. Intravaginal DHEA (prasterone) delivers the hormone directly to vaginal tissue.

What the evidence shows: Intravaginal DHEA at 0.50% (6.5 mg daily) has been studied in multiple clinical trials for genitourinary syndrome of menopause (GSM). Clinical trials by Labrie et al. (PMID: 26731686) demonstrated that daily intravaginal DHEA significantly improved all four coprimary parameters suggested by the FDA for vulvovaginal atrophy: vaginal dryness, dyspareunia (pain during intercourse), and objective measures of vaginal cell maturation.

The improvements in sexual function were particularly notable: desire increased by 28%, arousal by 49%, lubrication by 115%, ability to orgasm by 51%, satisfaction by 41%, and pain improved by 108%. These are large effect sizes compared to most supplement research.

Critically, intravaginal DHEA acts locally. A low dose permits strictly local action while maintaining all serum estrogens and androgens within normal postmenopausal values. This is an important distinction from oral DHEA, which can raise systemic hormone levels with less predictable effects.

Regulatory status: Intravaginal DHEA (brand name Intrarosa) was licensed in the EU in 2018 and FDA-approved in the US for moderate-to-severe dyspareunia due to vulvovaginal atrophy. It is available by prescription, not as an over-the-counter supplement. However, compounding pharmacies can prepare vaginal DHEA preparations. Over-the-counter oral DHEA is a different product with a different evidence base and should not be confused with intravaginal DHEA.

Dose: 6.5 mg intravaginally once daily.

Safety: No significant systemic effects at the 6.5 mg vaginal dose. Serum hormone levels remain within normal postmenopausal ranges. However, independent reviewers (PMID: 36300276) have noted that some efficacy data is based on unvalidated outcome measures, and the evidence excluded women taking systemic HRT. Further independent trials are warranted.

Tier 3: Limited or Weak Evidence

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These supplements are widely marketed for menopause but have minimal clinical evidence supporting their use. This does not mean they cannot help individual women — anecdotal and traditional evidence should not be entirely dismissed. But it does mean that expectations should be modest and that better-studied options should generally be prioritized.

Evening Primrose Oil

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What it is: Oil from the seeds of the evening primrose plant, rich in gamma-linolenic acid (GLA), an omega-6 fatty acid.

What the evidence shows: A recent systematic review and meta-analysis (PMC: 11745733) found that the severity of hot flashes was lower when evening primrose oil was taken for less than 6 months compared to placebo, but not when taken for longer durations. There was no difference in hot flash frequency or duration. One RCT (PMID: 23625331) found modest improvements in hot flash severity and improvements in social activities, relations with others, and sexuality compared to placebo, but another RCT found no significant benefit on any hot flash parameter.

Bottom line: The evidence is weak and inconsistent. If you try it, limit expectations to modest improvements in hot flash severity. Typical dose: 500-1,000 mg twice daily. Side effects may include nausea and headache.

Dong Quai (Angelica sinensis)

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What it is: A herb central to Traditional Chinese Medicine, often called “female ginseng.” It is one of the most commonly used herbs for menstrual and menopausal complaints in East Asia.

What the evidence shows: The only well-designed Western trial is sobering. A double-blind, randomized, placebo-controlled trial (PMID: 9418683) of 71 postmenopausal women taking dong quai or placebo for 24 weeks found no statistically significant differences between groups in endometrial thickness, vaginal maturation index, number of vasomotor flushes, or the Kupperman Menopausal Index. The researchers concluded that, used alone, dong quai does not produce estrogen-like responses and was no more helpful than placebo for menopausal symptoms.

It is important to note that in Traditional Chinese Medicine, dong quai is rarely used alone — it is typically part of multi-herb formulas. The Western research model of testing a single herb in isolation may not capture how dong quai works in its traditional context. However, based on the available clinical trial data, dong quai as a standalone supplement does not have evidence supporting its use for menopause.

There is also conflicting information about whether dong quai qualifies as a phytoestrogen. In vitro studies have shown weak estrogen-agonistic activity, while clinical data shows no estrogenic effects in humans.

Vitex / Chasteberry (Vitex agnus-castus)

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What it is: The fruit of the chaste tree, used for centuries in European herbal medicine for menstrual irregularities and PMS.

What the evidence shows: Vitex has much stronger evidence for PMS than for menopause. For PMS, it has outperformed placebo in numerous trials, with improvements in headache, nervousness, depression, breast pain, and bloating at doses of 20-40 mg/day for three months.

For menopause, an 8-week RCT (PMC: 6887765, PMID: 31067851) found that Vitex significantly reduced total menopausal symptoms, anxiety, and vasomotor dysfunction scores compared to placebo. However, this is a limited evidence base — essentially a single small trial, and the pharmacological rationale for menopause-specific benefits is less clear.

Vitex may be most appropriate for women in early perimenopause who are experiencing PMS-like symptoms, irregular cycles, and the premenstrual worsening that is common during the transition. Its mechanism involves acting on the pituitary gland to modulate luteinizing hormone production, which is more relevant when ovarian function is still present (perimenopause) than when it has ceased (postmenopause).

Dose: 20-40 mg/day of standardized extract. Best suited for perimenopausal women with ongoing cycles.

Omega-3 Fatty Acids

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What they are: Essential polyunsaturated fatty acids (EPA and DHA) found primarily in fatty fish and fish oil supplements.

What the evidence shows: Despite widespread recommendations, the clinical evidence for omega-3s specifically for menopausal hot flashes is disappointing. A meta-analysis of three RCTs involving 483 women (PMID: 30056356) found that omega-3 supplements may alleviate night sweats but showed no benefit for hot flush frequency or severity. A comprehensive 2023 systematic review (PMC: 10574492) found that combined analysis did not support the efficacy of omega-3 PUFAs for vasomotor symptoms, sleep quality, or depression in postmenopausal women.

That said, omega-3 fatty acids have robust evidence for cardiovascular protection, which becomes increasingly important after menopause when the cardioprotective effects of estrogen are lost. A 2025 review (Sage Journals: 20533691251341701) also highlighted emerging evidence for omega-3 effects on brain health during the menopausal transition. So while omega-3s may not directly address hot flashes, they remain valuable for the broader health picture during and after menopause.

Creatine (Emerging)

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What it is: An amino acid derivative that plays a key role in cellular energy production, traditionally associated with sports performance.

What the evidence shows: This is an emerging area of research that has generated considerable excitement. A 2025 randomized controlled trial (PMID: 40854087) specifically examined creatine supplementation in 36 perimenopausal and menopausal women over 8 weeks. Medium-dose creatine hydrochloride was superior to placebo in enhancing reaction time and increasing frontal brain creatine levels. It also showed a potential advantage in reducing the severity of mood swings. All interventions were well tolerated with no severe adverse effects.

The biological rationale is compelling: women have lower brain creatine levels than men, particularly in the frontal lobe (the region governing mood, cognition, memory, and emotion). Estrogen influences creatine metabolism, so its decline during menopause may exacerbate brain energy deficits. A broader analysis of 16 clinical trials in adults found that creatine may improve cognitive function, specifically memory, attention, and information processing speed.

Beyond cognition, creatine supplementation in postmenopausal women has been shown to enhance muscle mass, strength, and bone health, especially when combined with resistance training.

Dose: 3-5 g/day of creatine monohydrate (or equivalent creatine hydrochloride dose). This is an area where the research is still early, but the safety profile of creatine is well-established from decades of sports nutrition research.

The HRT Question: Supplements vs. Hormone Replacement Therapy

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No honest discussion of menopause supplements is complete without addressing hormone replacement therapy (HRT), also called menopausal hormone therapy (MHT). Understanding where supplements fit relative to HRT is essential for making informed decisions.

HRT is the most effective treatment for vasomotor symptoms. This is not debatable. Systemic estrogen therapy (with or without progestin, depending on whether the woman has a uterus) is FDA-approved as the first-line treatment for bothersome hot flashes and night sweats. It also prevents bone loss, reduces fractures, and can improve mood, sleep, and urogenital symptoms. For women under 60 or within 10 years of menopause onset who do not have contraindications, current guidelines from the Menopause Society, ACOG, and the Endocrine Society support its use.

So where do supplements fit?

First, for women with mild-to-moderate symptoms who prefer not to use hormones. Not every woman needs HRT, and not every woman wants it. For women whose hot flashes are bothersome but manageable, supplements like black cohosh, ERr 731, or soy isoflavones can provide meaningful relief without the complexities of hormone prescriptions.

Second, for women who cannot take HRT. This includes women with a history of hormone-sensitive breast cancer, active liver disease, unexplained vaginal bleeding, or a history of blood clots or stroke. For these women, non-hormonal options — including both supplements and prescription alternatives like SSRIs, gabapentin, or fezolinetant — are the appropriate path.

Third, as a complement to HRT. Some women take HRT for vasomotor symptoms but add magnesium for sleep, calcium and vitamin D for bone health, or maca for sexual function. HRT and supplements are not mutually exclusive.

What supplements cannot do is replicate the full systemic effects of HRT. No supplement provides the same degree of bone protection, cardiovascular benefit, or symptom relief as adequately dosed hormone therapy. Women with severe vasomotor symptoms who are candidates for HRT should not settle for supplements out of fear driven by outdated or misunderstood information from the 2002 WHI study. That study’s results have been substantially reinterpreted over the past two decades, and the current consensus is that HRT is safe and beneficial for most women who initiate it within the appropriate window.

Bone Health After Menopause: A Non-Negotiable Priority

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Osteoporosis is not a symptom you feel. By the time a fracture occurs, significant bone loss has already happened. One in two postmenopausal women will experience an osteoporotic fracture in her remaining lifetime. Hip fractures in elderly women carry a 20% mortality rate within one year. This is not a minor health concern.

The foundation of bone protection includes three key supplements:

Calcium provides the raw material for bone formation. The recommended daily intake for postmenopausal women is 1,200 mg from all sources. Most women can get 600-800 mg from dietary sources (dairy, leafy greens, fortified foods), with supplementation making up the difference. Calcium carbonate (taken with food for absorption) and calcium citrate (can be taken on an empty stomach) are the two most common forms.

Vitamin D3 is essential for calcium absorption. Without adequate vitamin D, you absorb only 10-15% of dietary calcium. With adequate vitamin D, absorption increases to 30-40%. The combination of calcium and vitamin D has been shown to reduce total fracture risk by 15% and hip fracture risk by 30% in meta-analyses. A dose of 1,000-2,000 IU/day is appropriate for most women, with blood levels of 25-hydroxyvitamin D ideally maintained above 30 ng/mL.

Vitamin K2 (menaquinone-7, or MK-7) is an increasingly recognized player in bone health. A meta-analysis of RCTs (PMID: 36033779) found that vitamin K2 supplementation significantly improved lumbar spine and forearm bone mineral density in postmenopausal women. It also reduced serum levels of undercarboxylated osteocalcin, indicating improved bone metabolism. Vitamin K2 works synergistically with vitamin D3: vitamin D stimulates the production of osteocalcin (a bone-building protein), while vitamin K2 activates it through carboxylation. Vitamin K2 also directs calcium into bone and away from arterial walls, potentially addressing the cardiovascular concern around calcium supplementation.

Beyond supplements, weight-bearing exercise and resistance training are indispensable. Combined exercise and calcium/vitamin D supplementation produces additive benefits on bone mineral density. Pharmacological treatments (bisphosphonates, denosumab, teriparatide) should be discussed with a physician for women with established osteoporosis or high fracture risk — supplements alone are insufficient for active disease.

Myths Debunked

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Myth 1: “Phytoestrogens are just like taking estrogen.” False. Phytoestrogens like soy isoflavones bind to estrogen receptors with 100 to 1,000 times less affinity than estradiol. They are selective — preferentially binding ER-beta over ER-alpha — and can act as both weak agonists and antagonists depending on the hormonal environment. Equating a soy isoflavone supplement with estrogen replacement therapy is like equating a flashlight with a spotlight. They interact with the same biology, but the magnitude is dramatically different.

Myth 2: “Natural supplements are always safer than HRT.” Not necessarily. “Natural” does not mean “safe” or “effective.” Black cohosh has rare liver toxicity concerns. St. John’s Wort has hundreds of dangerous drug interactions. Poorly manufactured supplements may contain contaminants or incorrect doses. HRT, when appropriately prescribed, has a well-characterized safety profile and is manufactured under strict pharmaceutical quality controls. The safest option is the one that is appropriate for your individual medical history, properly dosed, and monitored by a clinician.

Myth 3: “You just need to push through menopause — it’s natural.” Menopause is natural. So is a broken bone, but we still treat that. The idea that women should silently endure years of disruptive symptoms has no medical or ethical basis. If symptoms affect your quality of life, seeking treatment — whether HRT, supplements, or other interventions — is entirely appropriate.

Myth 4: “Soy gives men ‘man boobs’ and is dangerous for women with breast cancer.” Population-level data from Asian countries with high soy consumption consistently shows lower breast cancer rates, not higher. The American Cancer Society does not advise breast cancer survivors to avoid soy foods. Concentrated isoflavone supplements are a different question and warrant more caution, but moderate dietary soy consumption appears safe for most women, including breast cancer survivors.

Myth 5: “If a supplement works for menopause, it works the same for every woman.” Individual variation is enormous. Gut microbiome composition affects equol production from soy. Genetic polymorphisms influence hormone metabolism. Baseline hormone levels, body composition, stress levels, and co-occurring conditions all modify supplement response. What works dramatically for one woman may do nothing for another. This is not supplement failure — it is biological individuality.

Myth 6: “Menopause supplements will restore your hormones to premenopausal levels.” No supplement will restore estradiol to premenopausal levels. Even HRT does not fully replicate the cyclical hormone patterns of reproductive years. Supplements can modulate symptoms and provide supportive benefits, but they do not reverse the menopausal transition. Anyone claiming otherwise is selling something.

Drug Interactions and Safety Considerations

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Supplements are pharmacologically active substances, and several menopause-related supplements have meaningful interactions with prescription medications.

Phytoestrogen Concerns

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Soy isoflavones and red clover isoflavones both interact with estrogen receptors and theoretically could interfere with hormone-sensitive medications. The most important clinical concern is with tamoxifen and aromatase inhibitors used in breast cancer treatment. Some in vitro evidence suggests that genistein can stimulate ER-positive breast cancer cell growth and may interfere with the antitumor activity of tamoxifen at low concentrations. However, population-level data has not confirmed increased breast cancer risk with moderate soy consumption. The prudent approach: women with ER-positive breast cancer should not take concentrated phytoestrogen supplements without oncologist approval. Moderate dietary soy intake is generally considered acceptable.

St. John’s Wort: The Interaction Champion

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As noted above, St. John’s Wort induces CYP3A4, CYP2C9, CYP1A2, and P-glycoprotein. This means it can significantly reduce the blood levels and effectiveness of:

• Oral contraceptives (risk of unintended pregnancy — relevant for perimenopausal women)
• Antidepressants, especially SSRIs and SNRIs (serotonin syndrome risk)
• Warfarin and other blood thinners (reduced anticoagulant effect)
• Statins (reduced cholesterol-lowering effect)
• Immunosuppressants like cyclosporine and tacrolimus
• HIV antiretrovirals
• Certain cancer chemotherapy drugs
• Benzodiazepines including alprazolam

If you take any prescription medication, consult your pharmacist or physician before adding St. John’s Wort.

Black Cohosh

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While the hepatotoxicity risk appears to be very low with properly authenticated, standardized products, women taking other hepatotoxic medications (acetaminophen at high doses, statins, certain antifungals) should inform their physician. Monitoring liver function during use is reasonable, particularly for long-term supplementation.

Blood Thinning Interactions

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Omega-3 fatty acids, dong quai, and evening primrose oil all have mild anticoagulant properties. Women taking blood thinners (warfarin, apixaban, rivaroxaban) or those scheduled for surgery should disclose these supplements to their healthcare providers.

General Principles

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• Always inform every healthcare provider about every supplement you take.
• “Natural” does not mean “no side effects” or “no interactions.”
• More is not better. Exceeding recommended doses does not improve efficacy and often increases risk.
• Quality matters. Choose supplements from manufacturers that use third-party testing (USP, NSF, ConsumerLab). Adulteration and mislabeling are documented problems in the supplement industry.
• Timing matters. Some supplements (like calcium) should be split across the day. Others (like magnesium glycinate) are best taken in the evening.

Product Recommendations

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Recommended Supplements

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Based on the evidence reviewed in this article, the following products represent quality options for the supplements with the strongest evidence. As always, verify with your physician before adding any new supplement.

For hot flashes (Tier 1 evidence):

— The most clinically studied black cohosh extract (isopropanolic iCR extract), used in the majority of positive clinical trials. Standardized 20 mg tablets, typically taken twice daily.

— The specific extract used in European clinical trials. A single daily tablet providing 4 mg of the standardized ERr 731 extract.

— Look for products standardized to genistein content, as higher genistein formulations showed greater efficacy in meta-analyses. Typical dose: 40-80 mg daily.

For bone health:

— A straightforward combination for foundational bone support. Take with food for optimal calcium carbonate absorption.

— The MK-7 form has a longer half-life than MK-4, allowing once-daily dosing. Take with a fat-containing meal for absorption.

For sleep and mood:

— Magnesium glycinate is the preferred form for sleep and mood support, with better absorption and fewer GI side effects than citrate or oxide forms.

For cognition and muscle health (emerging):

— The most studied form of creatine, with emerging evidence for cognitive and mood benefits during the menopausal transition. Mix 3-5 g daily into water or a smoothie.

References

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1. Leach MJ, Moore V. Black cohosh (Cimicifuga spp.) for menopausal symptoms. Cochrane Database Syst Rev. 2012. PubMed: 22972105

2. Castelo-Branco C, et al. Black cohosh extracts in women with menopausal symptoms: an updated pairwise meta-analysis. Menopause. 2023. PubMed: 37192826

3. Trujillo-Hern\u00e1ndez B, et al. Black cohosh efficacy and safety for menopausal symptoms: The Spanish Menopause Society statement. Maturitas. 2022. PubMed: 35403534

4. Kaszkin-Bettag M, et al. Efficacy of the special extract ERr 731 from rhapontic rhubarb for menopausal complaints: a 6-month open observational study. Altern Ther Health Med. 2009. PubMed: 19043936

5. Shakeri F, et al. Efficacy evaluation of standardized Rheum rhaponticum root extract (ERr 731) on symptoms of menopause: A systematic review and meta-analysis. Phytother Res. 2024. PMC: 11144934

6. Association between Extract Rheum rhaponticum 731 (ERr 731) prescription and subsequent breast cancer. Breast Cancer Res Treat. 2025. PMC: 12086110

7. Taku K, et al. Extracted or synthesized soybean isoflavones reduce menopausal hot flash frequency and severity: systematic review and meta-analysis. Menopause. 2012. PubMed: 22433977

8. Effects of soy isoflavones on menopausal symptoms in perimenopausal women: a systematic review and meta-analysis. Menopause. 2025. PMC: 12296567

9. Garza-Garduno R, et al. Evaluation of clinical meaningfulness of red clover extract to relieve hot flushes and menopausal symptoms: A systematic review and meta-analysis. Nutrients. 2021. PMC: 8069620

10. Lipovac M, et al. Effects of red clover on hot flash and circulating hormone concentrations in menopausal women: a systematic review and meta-analysis. Avicenna J Phytomed. 2015. PMC: 4678495

11. Lee MS, et al. Maca (Lepidium meyenii) for treatment of menopausal symptoms: A systematic review. Maturitas. 2011. PubMed: 21840656

12. Meissner HO, et al. Hormone-balancing effect of pre-gelatinized organic maca: clinical responses of early-postmenopausal women to maca in double-blind, randomized, placebo-controlled, crossover configuration. Int J Biomed Sci. 2006. PMC: 3614644

13. Apaydin EA, et al. The efficacy and safety of St. John’s wort extract in depression therapy compared to SSRIs: A meta-analysis. J Affect Disord. 2022. PubMed: 36226689

14. Abbasi B, et al. Oral magnesium supplementation for insomnia in older adults: a systematic review and meta-analysis. BMC Complement Med Ther. 2021. PubMed: 33865376

15. Palacios S, et al. NCCTG N10C2 (Alliance) – a double-blind, placebo-controlled study of magnesium supplements to reduce menopausal hot flashes. Menopause. 2015. PMC: 4442087

16. Labrie F, et al. Efficacy of intravaginal dehydroepiandrosterone (DHEA) on moderate to severe dyspareunia and vaginal dryness, symptoms of vulvovaginal atrophy. Menopause. 2016. PubMed: 26731686

17. Hidalgo LA, et al. The effect of oral evening primrose oil on menopausal hot flashes: a randomized clinical trial. Arch Gynecol Obstet. 2013. PubMed: 23625331

18. Evening primrose oil for menopause hot flashes: systematic review and meta-analysis. J Menopausal Med. 2025. PMC: 11745733

19. Hirata JD, et al. Does dong quai have estrogenic effects in postmenopausal women? A double-blind, placebo-controlled trial. Fertil Steril. 1997. PubMed: 9418683

20. Webster DE, et al. Comparison of Vitex agnus-castus extracts with placebo in reducing menopausal symptoms: A randomized double-blind study. Complement Ther Med. 2019. PMC: 6887765

21. Mohammady M, et al. Effect of omega-3 supplements on vasomotor symptoms in menopausal women: a systematic review and meta-analysis. Eur J Obstet Gynecol. 2018. PubMed: 30056356

22. Weaver CM, et al. Calcium plus vitamin D supplementation and risk of fractures: an updated meta-analysis from the National Osteoporosis Foundation. Osteoporos Int. 2016. PubMed: 26510847

23. Ma ML, et al. Efficacy of vitamin K2 in the prevention and treatment of postmenopausal osteoporosis: a systematic review and meta-analysis. Front Public Health. 2022. PubMed: 36033779

24. Candow DG, et al. The effects of 8-week creatine hydrochloride and creatine ethyl ester supplementation on cognition, clinical outcomes, and brain creatine levels in perimenopausal and menopausal women (CONCRET-MENOPA). J Am Nutr Assoc. 2025. PubMed: 40854087

25. Naumova N, et al. Suspected black cohosh hepatotoxicity: no evidence by meta-analysis of randomized controlled clinical trials for isopropanolic black cohosh extract. Menopause. 2011. PubMed: 21228727

Where to Buy Quality Supplements

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Based on the research discussed in this article, here are some high-quality options:

• Vitamin D Supplement
• Vitamin D3 Supplement
• Omega-3 Supplement
• Fish Oil Supplement
• Magnesium Supplement

Common Questions About Supplements

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What are the benefits of supplements?

Supplements has been studied for various potential health benefits. Research suggests it may support several aspects of health and wellness. Individual results can vary. The strength of evidence differs across different claimed benefits. More high-quality research is often needed. Always review the latest scientific literature and consult healthcare professionals about whether supplements is right for your health goals.

Is supplements safe?

Supplements is generally considered safe for most people when used as directed. However, individual responses can vary. Some people may experience mild side effects. It’s important to talk with a healthcare provider before using supplements, especially if you have existing health conditions, are pregnant or nursing, or take medications.

How much supplements should I take?

The appropriate dosage of supplements can vary based on individual factors, health goals, and the specific product formulation. Research studies have used different amounts. Always start with the lowest effective dose and follow product label instructions. Consult a healthcare provider for personalized dosage recommendations based on your specific needs.

What are the side effects of supplements?

Most people tolerate supplements well, but some may experience mild side effects. Common reported effects can include digestive discomfort, headaches, or other minor symptoms. Serious side effects are rare but possible. If you experience any unusual symptoms or reactions, discontinue use and consult a healthcare provider. Always inform your doctor about all supplements you take.

When should I take supplements?

The optimal timing for taking supplements can depend on several factors including its absorption characteristics, potential side effects, and your daily routine. Some supplements work best with food, while others are better absorbed on an empty stomach. Follow product-specific guidelines and consider consulting a healthcare provider for personalized timing recommendations.

Can I take supplements with other supplements?

Supplements is a topic of ongoing research in health and nutrition. Current scientific evidence provides some insights, though more studies are often needed. Individual responses can vary significantly. For personalized advice about whether and how to use supplements, consult with a qualified healthcare provider who can consider your complete health history and current medications.

How long does supplements take to work?

The time it takes for supplements to work varies by individual and depends on factors like dosage, consistency of use, and individual metabolism. Some people notice effects within days, while others may need several weeks. Research studies typically evaluate effects over weeks to months. Consistent use as directed is important for best results. Keep a journal to track your response.

Who should not take supplements?

Supplements is a topic of ongoing research in health and nutrition. Current scientific evidence provides some insights, though more studies are often needed. Individual responses can vary significantly. For personalized advice about whether and how to use supplements, consult with a qualified healthcare provider who can consider your complete health history and current medications.

Frequently Asked Questions

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What is Best and how does it work?

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Best is a compound that works through multiple biological pathways. Research shows it supports various aspects of health through its bioactive properties.

How much Best should I take daily?

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Typical dosages range from the amounts used in clinical studies. Always consult with a healthcare provider to determine the right dose for your individual needs.

What are the main benefits of Best?

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Best has been studied for multiple health benefits. Clinical research demonstrates effects on various body systems and functions.

Are there any side effects of Best?

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Best is generally well-tolerated, but some people may experience mild effects. Consult a healthcare provider if you have concerns or pre-existing conditions.

Can Best be taken with other supplements?

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Best can often be combined with other supplements, but interactions are possible. Check with your healthcare provider about your specific supplement regimen.

How long does it take for Best to work?

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Effects can vary by individual and the specific benefit being measured. Some effects may be noticed within days, while others may take weeks of consistent use.

Who should consider taking Best?

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Individuals looking to support the health areas addressed by Best may benefit. Those with specific health concerns should consult a healthcare provider first.