TLDR Finasteride reduces dihydrotestosterone, increases testosterone, and may treat hirsutism in women.
The study investigated the effects of finasteride, a 5 alpha-reductase inhibitor, on circulating androgens and gonadotropin secretion in hirsute women. The results showed that finasteride significantly reduced serum dihydrotestosterone levels and increased serum testosterone levels, but did not affect gonadotropin secretion. The study suggests that finasteride may be a useful treatment for hirsutism in women.
1040 citations,
October 1992 in “The New England Journal of Medicine” Finasteride effectively treats BPH but may increase sexual dysfunction risk.
30 citations,
August 1992 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride doesn't affect hormone levels in normal men.
34 citations,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride and minoxidil together promote hair growth better than either alone.
147 citations,
April 1990 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride safely lowers DHT levels without affecting testosterone.
55 citations,
March 1990 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride may treat baldness but less effective for those with 5α-reductase deficiency.
53 citations,
May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
193 citations,
August 1985 in “Endocrinology” Different animals have unique versions of the enzyme that changes testosterone into another hormone, which is important for creating effective treatments for prostate and hair loss conditions.
22 citations,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces dihydrotestosterone, increases testosterone, and may treat hirsutism in women.