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ingestible · for hair loss & thinning

Saw Palmetto

Reviewed by the Nimbera editorial team · Last updated May 2026

Evron et al. 2020 systematic review (JDDI) found saw palmetto improved hair density and quality in androgenic alopecia, acting as a natural 5-alpha reductase inhibitor.$15-30/month

How to use

Take 320 mg standardized saw palmetto extract (liposterolic extract, 85-95% fatty acids) once daily with food. Allow 3-6 months to assess results. Topical serums containing saw palmetto can be used alongside oral supplementation.

How it works

Blocks 5-alpha reductase type I and II, reducing conversion of testosterone to DHT - the primary androgen responsible for miniaturizing hair follicles in androgenic alopecia. Also has anti-inflammatory properties.

Where to buy

Health food stores, pharmacies, Amazon, iHerb. Brands: Nature's Way, Jarrow, Thorne. Choose lipid/fat extract, not plain berry powder.

Typical cost: $15-30/month

Safety notes

May interact with blood thinners and hormone therapies. Not for use during pregnancy or breastfeeding. Men with prostate concerns should consult a doctor before use. Rare reports of liver toxicity at high doses.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

PubMed - Evron et al. 2020 (JDDI)

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.