Estrogen hormone, prescribed in tablet, patch and gel forms
Hormone that regulates sleep, sold as a supplement
Nonsteroidal anti-androgen, originally a prostate cancer drug
Oil from the neem tree, used in traditional remedies
- Is follistatin safe for use in women or transgender individuals undergoing hormone therapy? No study has tested follistatin in women or transgender people on hormone therapy, and it has no approved human use or established dose; a 2023 study in 72 adolescents with PCOS found that the body's own follistatin rose on estrogen-containing contraceptives alongside less favourable metabolic markers, a correlation that does not show follistatin caused them. The published evidence does not support using it in this group.
- Alfatradiol: What does a form of estrogen have to do with hair loss in men? Alfatradiol (17α-estradiol) is a topical hormone sold without prescription in German pharmacies, licensed there for mild androgenetic alopecia, and not FDA-approved. The controlled trial evidence is in women, where hair density and thickness stayed nearly unchanged over 6 months while minoxidil improved them (the trial had no placebo group); no comparable placebo-controlled trial in men appears to have been published.