learn Alfatradiol
a synthetic estrogen used topically as an anti-androgen
- Does Alfatradiol work the same for women, men, and trans people? Almost all controlled data on topical alfatradiol comes from cisgender women, where it slowed hair loss rather than regrowing hair and was outperformed by minoxidil. No published controlled trial covers cisgender men, and none covers trans people at all — so the honest answer is that the difference has not been measured.
- Alfatradiol: Can it help if my hair loss is linked to DHT? The one randomised trial of topical alfatradiol — in 103 women — found hair thickness and density essentially unchanged after six months, while minoxidil improved both; its authors credited alfatradiol with slowing hair loss rather than regrowing hair. Laboratory work supports a local effect on follicular DHT, but no controlled trial in men appears to have been published.
- Alfatradiol: What does a form of estrogen have to do with hair loss in men? Alfatradiol (17α-estradiol) is a prescription topical hormone, licensed for androgenetic alopecia in Germany but not FDA-approved. The controlled trial evidence is in women, where it produced stabilisation rather than regrowth and was outperformed by minoxidil; no comparable placebo-controlled trial in men appears to have been published.
