PRP stands for Platelet-rich plasma, a substance that's thought to promote healing when injected. Plasma is a component of your blood which contains platelets that support cell growth. Platelet-Rich Plasma (PRP) is processed blood plasma, a concentration of plasma with platelets which are separated from red blood cells and white blood cells. This concentration of PRP taken from the patient's own blood is injected into the scalp to promote hair growth. The idea is that injecting PRP into damaged tissues will stimulate your body to grow new, healthy cells and promote healing. PRP is recommended for patients with thin hairs. It is also used to treat facial rejuvenation and is also advisable for treating areas like face, hands, neck and post-pregnancy stretch marks.