An Isolated, Implausibly Large Effect in a Case-Control Study of Digit Ratio (2D:4D) and Male Androgenetic Alopecia: Comment on Unal

The conversation discusses androgenetic alopecia (AGA) and questions why treatments focus on lowering DHT levels instead of building resistance to it. It also touches on hair transplantation techniques using body hair.

Androgenic alopecia (AGA) might have evolved to reduce prostate cancer risk by increasing UV exposure to the scalp, but this theory is debated. Treatments like minoxidil and finasteride are used for AGA, though the exact causes and evolutionary reasons for hair loss are unclear.

A 25-year-old male experienced significant hair loss due to telogen effluvium and androgenetic alopecia. He began using finasteride, minoxidil, and vitamins, seeing some regrowth but remains worried about hair density.

Androgenetic alopecia is affected by scalp DHT levels, not sensitivity, with treatments like finasteride and dutasteride aiming to optimize these levels. Personalized DHT management is crucial for effective hair growth.

A 20-year-old woman with androgenetic alopecia feels depressed about her hair loss, despite using topical minoxidil, spironolactone, and saw palmetto. Suggestions include trying oral minoxidil, higher doses of finasteride or dutasteride, and checking for vitamin deficiencies and heavy metal exposure.

The GT20029 tincture, a topical androgen receptor degrader, showed significant hair growth and good safety in a China Phase II trial for male androgenetic alopecia (AGA), with the 1% dose twice weekly identified as optimal. The company plans to initiate Phase III trials in China and Phase II in the U.S., and the treatment also shows promise for acne.