>>18283754>>18283755it can be risky, especially if your testosterone is low. There's no room for inhibiting your DHT then.
so first of all, measure your testosterone. If you're 600ng/dl and up, 0.5mg/day shouldn't do a thing to your dick
if it's low, try to up it - get some sleep, slim down, exercise, eat animal fats
either way, topical finasteride at 0.1mg per day is shown in papers to not decrease systemic DHT almost at all. So orally it probably doesn't do that either
if your balding is minor, you could get away with just microneedling and washing your hair with ketoconazole shampoo, no hormonal stuff involved