http://blog.drrobertjones.com/, he mentions that only 1 out of 36 patients he has treated showed results from PRP which could be coincidental or from another treatment (since it wasn't a strict scientific study it could of been hair growth from propecia or minoxidil)He-Bat said:There are many doctors that believe in PRP, like dr. Feller. I don't believe it's a scam.