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Saw Palmetto

Also known as: Serenoa repens

Limited EvidenceSupplementAndrogenic Alopecia

Herbal 5-alpha reductase inhibitor with limited but suggestive evidence for hair loss.

Regrowth Potential25%
Long-Term Viability60%

Mechanism of Action

Saw palmetto extract contains fatty acids and phytosterols that inhibit both type I and type II 5-alpha reductase enzymes, reducing conversion of testosterone to DHT. It may also have anti-inflammatory effects on hair follicles.

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