I saw a top hair derm in NYC, Dr. Shapiro. He also has clinic in Canada. He is outside insurance and expensive. Like $800. But he was super nice and spent an hour. He prescribed finasteride, 2.5 mg once a day, and said 5% minoxidil NOT the foam because too much on hair not enough on scalp. He said make 5 parts front to back. One center, then two on each side of center about 1". He said 5 drops spaced front to back on each part line and rub in. He ran serum ferritin test. He mentioned Selenium. and we talked about Topamax which I take for migraine as being possible contributing factor. If you have elevated DHEA(S) you can try taking micronized reservatrol, 1500 mg a day divided doses 3. And also sodium or cal/mag butyrate. He also said many of his patients with only adrenal androgen excess take prednisone low dose and endocrinologist at NYU prescribes all the time.
He prescribed dutasteride also but only to women over 40, under 40 he will only do finasteride.