Your surgeon draws blood from your arm (not your neck, as many a movie vampire has been known to do) and spins it to separate out the plasma, which contains platelets. These are the proteins and growth factors that may stimulate collagen production and thereby promote skin regeneration and rejuvenation. There are several kits available to isolate these growth factors, and platelet-rich plasma (PRP). Once collected, the PRP is injected back into your face.
In laymen's terms: It's a facial that essentially uses, "your own blood to help promote the healthy activity of your skin cells," says Joshua Zeichner, the director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City. Our blood is comprised of red blood cells and serum, which contain our white blood cells and platelets.