I am a 42 yr old man suffering from hair loss. I has thinning top and receding front hairline. I went to a hair saloon and the stylist/hair consultant recommended the use of high pressure pure oxygen into the scalp that will improve the hair growth. Is there any evidence that this will work? I my country all the hair consultant has to print the disclaimer that there is no evidence that that their treatment will promote hair growth by law but they are still selling the various products claiming that their treatment for hairs work. Can you advise whether the oxygen treatment that I mentioned work? Is there any drugs that are has evidence to proof that they work by western studies? Thanks.