A mixture of platelets and fibrin that’s extracted from a person’s blood and injected for a cosmetic procedure dubbed the “vampire lift” bolsters collagen and activates cells in connective tissue, researchers said. Investigators from the New York Eye and Ear Infirmary studied the platelet-rich fibrin matrix, sold by closely held Aesthetic Factors of Wayne, New Jersey, in four healthy volunteers. While the technique has U.S. approval for use in orthopedic surgery, some doctors give it as a tissue filler for facial wrinkles, scars and sagging skin.
