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Saw Palmetto

Best Supplements for Hair Growth: Biotin, Collagen, and What Actually Works

A deep-dive into the clinical evidence behind 15 hair growth supplements, ranked by research quality into three tiers. Includes effect sizes from RCTs, dosing protocols, debunking of biotin hype, drug interactions, and honest verdicts on what works for androgenetic alopecia, telogen effluvium, and nutritional hair loss.