PRP is good stuff! I have been doing it for years. Main usage is worn out shoulder to avoid 3rd surgery. The doctor I use has gotten heavy into stem cells, and combined I have had good results. I am 77 and still do truck repair. You Tube "Bill Covert service truck tour" that is a show and tell. That I made a year ago right after putting $8.500 worth of PRP and stem cell, in October I put another $11,000 into the shoulder. Right now that shoulder is stronger than it has been for several years. So $21,000 last year on that shoulder and feet, which is cheap for the ability to continue to work and the income realized, a real bargain.
I started my doctor treating dupuytren's contracture with PRP. Worked good on feet and hands.
It is not for everyone and it costs. It will work best on people who are active, work, exercise and are proactive as catching joint and tissue damage quickly. If you are obese, out of shape barely active forget it. It is something for people who maintain body health and do not use it for last ditch attempt attempt to avoid joint replacement.
Works great for knees, which requires a lot of daily exercise on stationary bike.
Yea I was going to have a profitable summer, until two weeks ago, slipped on slick snow landed on left shoulder, tore rotator cuff tissue so had $8.500 injected last week. Should be a quick recovery.