Why Cant we just find an effective androgen receptor antagonist that works locally on the scalp?

Research/Science 3/20/2023

User used Finasteride, Dutasteride, and Minoxidil for one year to treat hair loss. They discussed possibly trying RU58841 or pyrilutamide in the future.

. CumsOnYourFeet69 has been discussing a new treatment called CosmeRNA which claims to target the root cause of male pattern baldness, and is considering using it in conjunction with Minoxidil instead of Finasteride due to possible side effects. Replies have highlighted that the efficacy of this treatment is still unknown, but it could be used as an effective maintenance option if successful.

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.

The conversation discusses whether finasteride's reduction of DHT and increase in scalp testosterone contribute to hair follicle miniaturization. Some participants argue testosterone does not cause miniaturization, while others suggest that even with reduced DHT, other androgens like testosterone may still contribute to hair loss.

Hair loss treatments discussed include Minoxidil, Finasteride, RU58841, and Nizoral shampoo. Nizoral's effectiveness is debated, with some suggesting it works as a weak antagonist for androgen receptors, while others attribute its benefits to anti-fungal and anti-inflammatory properties.