Yes, PRP facelift is used for both cosmetic and non cosmetic procedures. In cosmetics, it is most commonly used for your hair regrowth and for facial rejuvenation. In terms of non-cosmetic fields like joint pain relief and knee movements PRP has been used repeatedly by various doctors and results vary from patient to patient. The therapy sessions can be taken once in six weeks, and you can undergo two to three sessions in six months. After you receive results that are desirable then you can undergo one or two sessions of PRP or advanced RPP once in a year.