Platelet-rich plasma (PRP) facials became popular with plastic surgery because of their role in wound healing. PRP has a high concentration of platelets. which allows for the formation and release of growth factors and active proteins that promote healing. It is widely used in facial skin rejuvenation.
The PRP is injected very superficially into the skin of the scalp in areas of hair loss with the expectation that the growth factors will produce thicker, darker, healthier, and more cosmetically effective hair growth.