Why haven't many people tried this method? Any specific reason? I know it is not strong enough to halt hairloss but why don't people use it along finasteride to get more promising results? And does it's long term use have any frequent side effects apart from skin thinning(which is an infrequent side effect)? Talking about Betamethasone valerate, Betamethasone dipropionate as they are more commonly used topical corticosteroids prescribed by dermatologists.