PRP is Platelet-Rich Plasma that is collected from the patient’s own blood by centrifuging. Plasma is a substance found in the blood that contains platelets, which promote hair growth & prevent hair fall. There aren’t any side effects to worry about. PRP doesn’t deliver results immediately, so you shouldn’t expect to see a full head of hair overnight. You will likely need three monthly sessions followed by an appointment four to six months later, and then yearly maintenance sessions after that.