Are you looking for a hair loss solution? A therapy that promotes healing in injured joints may help restore your lost hair. About 50 million American men and 30 million women have male- or female-pattern baldness. It can begin early in life, but is much more common after the age of 50, when more than 50% of men will experience some kind of hair loss. However, PRP Hair Treatment — platelet-rich plasma (PRP) therapy — appears to help regrow lost hair. And, there are virtually no side effects from PRP, except for a mild feeling of pressure at the injection site.