There are probably a million internet pages that will tell me that jerking off will grow hair on my palms but that doesn't make it true.You should do a little research before being a smartass. PRP is used for tons of things. Hair growth, wrinkles, skin tightening, breast lift/fill, etc. Google Vampire Facelife, PRP for hair loss, etc.
It's amazing what you find when you press "Search" or "Go".
Using your own growth factors & plasma is an organically derived process, and causes your cells to in essence jump back to life (ie: follicles, collagen, etc. )
Why don't you post the scientific studies that say it regrows hair like you say it does. Not quotes from people selling the product and not your personal experience seeing the miraculous results on Joe Blow - but impartial third party science stating PRP grows hair on men's heads.