I had PRP, the procedure where blood is drawn, put in a centrifuge, and the plasma is injected back,in my case, right into the scalp. I've been using minoxidil foam daily since hen, and my hair is back to normal. Unfortunately, once hair follicles die, there's nothing to bring them back to life. That's why it's so important to treat hair loss early on. Also, minoxidil benefits last only as long as you take it. It reverts back if you stop, but it's very quick, just rubbing the foam into your hair; so there's really no reason to stop.