Platelet-rich fibrin matrix method

The "platelet-rich fibrin matrix" (PRFM) method, marketed in the United States as Selphyl and also known as the vampire filler or vampire facelift, is a process in cosmetic surgery. It is a way of extracting platelets from the patient's own blood and using them as a dermal filler – that is, as a substance injected under the skin of the face to fill out wrinkles so as to provide a more youthful appearance.