Peptide supplements represent one of the most promising frontiers in anti-aging and performance enhancement. These short chains of amino acids act as cellular signaling molecules, triggering specific biological responses that can accelerate healing, promote muscle growth, and potentially extend lifespan. While peptides have been used in medical settings for decades, they’re now gaining mainstream attention as research peptides become more accessible to health-conscious consumers.
This comprehensive guide examines the most effective peptide supplements currently available, analyzing the science behind their mechanisms, reviewing clinical research with specific PubMed citations, and providing practical guidance on dosing, administration, safety, and sourcing.
Nicotinamide adenine dinucleotide (NAD+) has emerged as one of the most promising targets for anti-aging and longevity interventions. This critical coenzyme, present in every cell of your body, plays essential roles in energy metabolism, DNA repair, cellular signaling, and gene expression. The problem? NAD+ levels decline dramatically with age, dropping by approximately 50% between ages 40 and 60. This decline correlates with many hallmarks of aging and age-related diseases.
The good news is that NAD+ levels can be restored through supplementation with NAD+ precursors. This comprehensive guide examines the science behind NAD+ supplementation, compares the most effective forms and delivery methods, reviews the latest human clinical trials, and provides evidence-based recommendations for choosing and using NAD+ supplements for longevity, energy, and healthspan optimization.
A comprehensive, research-backed guide to anti-aging supplementation for women in their 30s. Covers NAD+ precursors (NMN, NR), collagen peptides, adaptogens for stress and hormones, antioxidants, omega-3s, and other longevity-focused interventions backed by clinical science.
Evidence-based guide to urolithin A supplements. We review clinical trials on mitophagy activation, muscle strength, immune function, and longevity — plus how to choose the best urolithin A product.
A comprehensive, research-backed guide to fisetin’s role in longevity, senolytic activity, and anti-aging, with dosing recommendations and product picks.
A deep, evidence-based review of taurine supplementation for longevity, cardiovascular health, brain protection, exercise performance, and metabolic health. Covers the landmark 2023 Science paper, the 2025 NIH rebuttal, dosing protocols, food sources, and what your body tells you along the way.
A comprehensive, evidence-based review of spermidine supplementation for autophagy induction, cardiovascular protection, and longevity. Covers the molecular mechanisms, every major human clinical trial, epidemiological mortality data, dietary sources, optimal dosing, safety profile, and practical guidance for supplementation.
An evidence-based deep dive into resveratrol supplementation — covering the French Paradox, SIRT1 activation, the bioavailability problem, what human clinical trials actually show for cardiovascular health, blood sugar, inflammation, and cognition, plus pterostilbene, dosing guidance, and product recommendations.
A detailed, research-backed comparison of NMN and NR as NAD+ precursors for anti-aging, covering the clinical evidence, biochemistry, bioavailability differences, FDA controversy, and practical recommendations for supplementation.
A comprehensive guide to NAD+ boosting supplements, comparing NMN, NR, niacin, and other precursors with clinical evidence and practical product recommendations.