Saw palmetto is the natural DHT blocker men reach for when they want finasteride’s mechanism without the prescription. The honest framing: it works on the right pathway, just weakly.
The Mechanism (Why It’s Not Snake Oil)
Pattern baldness is driven by DHT, made when the enzyme 5-alpha-reductase converts testosterone. Finasteride blocks that enzyme. Saw palmetto appears to do the same thing, partially.
How Well It Actually Works
Natural DHT blockers like saw palmetto lower DHT by roughly 10–30%, versus finasteride’s 60–70%. A real but gentle version of the drug.
Dosing and Side Effects
Studies commonly use around 320mg/day of a standardized extract (~85–95% fatty acids/sterols). Generally well tolerated, occasional mild stomach upset.
Where It Fits
Think of saw palmetto as the entry-level DHT lever — a fair first step for early thinning, or a stack member alongside minoxidil. Not a replacement for finasteride if you want maximum effect.
The Bottom Line
Saw palmetto is the most legitimate natural DHT blocker — real mechanism, real if modest evidence, good safety.
Informational only, not medical advice.