What is the evidence for PRP and hair loss prevention and/or hair regrowth? Is there any evidence that it works along the frontal hairline? What are the biggest risks associated with this procedure? For those that couldn’t tolerate Propecia, is this a viable option? Thank you in advance for your assistance.
PRP means platelet rich plasma, and this is obtained by putting some of your blood in a tube, then spinning it down so that the plasma segment from the mix allows the red blood cells to fall to the bottom of the blood tube. The plasma is on the top of the tube and it is drawn off and then used by doctors to re-inject into your body. Some doctors use this plasma injection during the transplant process. Some doctors use it without transplants, as you suggested here, which is then injected into the balding area.
Some doctors claim that the injection of plasma into the bald skin will reverse balding or slow it down, but there is absolutely no proof that there is any benefit of the process. There is one benefit to the surgeon, though — the professional fee he pockets from performing this technique.
My advice to you is to stick to treatments that work and do not volunteer your body to unproven experimentation. If you can’t tolerate finasteride (Propecia), work this out with your doctor.