DHT (Dihydrotestosterone)

Dihydrotestosterone (DHT) is a potent androgen receptor agonist that plays a crucial role in various physiological processes, including hair growth and prostate health. It is produced from testosterone through the action of the enzyme 5-alpha-reductase 5.

DHT has been shown to have both agonistic and antagonistic effects on the androgen receptor, depending on the context and dose. At high doses, DHT can suppress the hypothalamo-pituitary-testicular axis, leading to decreased testosterone production 6. However, at lower doses, DHT may have a more nuanced effect, with some studies suggesting that it can actually increase hair growth and improve prostate health 1.

The relationship between DHT and hair loss is complex, with some research suggesting that DHT may contribute to the development of male pattern baldness 5. However, other studies have cast doubt on this idea, suggesting that the relationship between DHT and hair loss may be more complicated than previously thought 7.

DHT is also known to be metabolized by the body, with 11-keto DHT being a naturally occurring metabolite that has been shown to have similar androgenic activity to DHT itself 4. However, the physiological role of 11-keto DHT in mammals is currently unknown.

In terms of supplementation, Ray Peat has suggested that DHT should only be used in specific cases, such as breast cancer or prostate cancer, and at very low doses (1mg daily) dissolved in fat 8. He also notes that correcting thyroid, vitamin D, DHEA, and pregnenolone levels is often more effective in regulating DHT levels than supplementing with DHT directly.

Overall, the effects of DHT on the body are complex and multifaceted, and more research is needed to fully understand its role in various physiological processes.