Also known as: Urtica dioica, nettle root extract
Traditional herb with theoretical 5-alpha reductase inhibition, studied mainly for BPH, not hair loss.
Nettle root extract contains compounds (including beta-sitosterol and scopoletin) that may inhibit 5-alpha reductase and sex hormone-binding globulin (SHBG), reducing free DHT availability. Anti-inflammatory properties may also benefit the scalp. The mechanism for hair loss is extrapolated from BPH research.
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