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What Is a Natural DHT Blocker for a Woman's Scalp?

The conversion of testosterone to DHT, or dihydrotestosterone, is one of the main causes of hair loss. Although estrogen counters this conversion, the onset of menopause decreases this protection in women. Fortunately, the process can be slowed or reversed with natural DHT blockers.

Treatment Goal

As hormone levels begin to decline in women, available circulating testosterone is converted into dihydrotestosterone, which signals hair follicles to enter a permanent state of rest. Since this conversion cannot take place without the release of enzyme 5-alpha-reductase (5-AR) Type II from hair follicles, blocking this enzyme is the primary goal.

Fatty Acids

Hair Loss & Low Testosterone

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British researchers at the University of Portsmouth confirm that L-lysine plays a significant role in deterring female hair loss. The Journal of Investigative Dermatology reports that gamma-linolenic acid also appears to inhibit 5-alpha-reductase 2.

Green Tea

Green tea extract contains epicatechin-3-gallate and epigallocatechin-3-gallate, which have demonstrated the ability to prevent 5-AR release. These agents also inhibit the 5-alpha-reductase type I, the enzyme needed to synthesize DHT from testosterone.

Saw Palmetto

Cimetidine for Hair Growth

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Saw palmetto extract contains sterols that inhibit follicle uptake of dihydrotestosterone.


This plant sterol has been shown to be effective in blocking 5-AR release, particularly when combined with saw palmetto extracts.