Everything about PRP hair treatment. What is PRP therapy? PRP or plasma rich platelet therapy is a hair loss treatment procedure including three steps , in which a person’s blood is drawn, processed and then injected into the area of the scalp where there is no hair. The injections used in the therapy consists of a person's own platelets as it has a protein contain and fastens the process of healing and regular blood flow in the scalp, restoring hair growth. Over the years doctors and researchers have found the plasma rich platelet therapy effective and efficient. PRP has growth factors and proteins which speeds up tissue repair. As hair loss happens due to weakened and damaged hair follicles that slow down hair growth, prp can help to tackle the problem and regrow hair again at a higher rate.