Luckily, we now also have topical finasteride. Our article on the side effects of finasteride in women is a great resource to learn more about finasteride. Looking at these findings, it seems like higher doses might be more effective. After one year, there was no significant difference between the placebo group and the finasteride group. This is where we’re going to note that dosage may play a really critical role in the results you’ll see.Īnother one-year, double-blind, placebo-controlled study tested 137 postmenopausal women with androgenetic alopecia, giving them a placebo or 1 milligram daily of finasteride. But there’s one caveat: These women also took birth control pills (since finasteride is classified as a teratogenic), making it tough to solely attribute the hair growth to finasteride.
Sixty-two percent of the women saw some improvements in hair loss and hair density. In one small study, 37 premenopausal women took a 2.5-milligram oral dose of finasteride daily for a year. The dosage of finasteride for female pattern hair loss can vary, as noted in these studies. More than half of participants saw significant improvements in hair regrowth, while another third showed moderate improvement. Though the study was only done on 40 women, they were monitored for 18 months. Doses of oral finasteride ranged from 0.5 to 5 milligrams per day in females aged 6 to 88 over a duration of six to 12 months.Īnother study tested the efficacy and safety of a 5-milligram dosage of finasteride in normoandrogenic postmenopausal women. But studies have shown that women have used finasteride with success, as you can see from some findings below.ĭata on 3,500 women with androgenetic alopecia treated with 1.25 milligrams of oral finasteride showed a significant increase in hair thickness over a three-year period.Ī review of 65 studies involving finasteride use in women published between January 1997 and July 2017 concluded that it may improve hair loss in women with female pattern hair loss or frontal fibrosing alopecia. So we can’t yet confidently state whether or not finasteride is completely safe for women to use.
Due to its potential teratogenic effects, clinical studies on the use of finasteride for FPHL are limited. While finasteride has been well-studied for male pattern baldness, there isn’t as much research on females. The relationship between DHT and male pattern baldness is clearly linked, but the connection is a little murkier with female pattern hair loss (FPHL). In turn, it prevents hair follicles from producing new hairs, resulting in hair thinning or overall balding. We know what you’re thinking: Why does DHT matter for hair loss? DHT is thought to bind to receptors in your scalp. Some people are more sensitive to DHT than others.
How does finasteride work? This selective 5-alpha reductase inhibitor decreases the conversion of testosterone into the hormone dihydrotestosterone (DHT). Commonly sold under the brand name Propecia®, finasteride is a medication often prescribed for treating male pattern baldness.
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