They're mixing it with ACell, as per Doc Hitzig's procedure. I gotta say, while I'm a big cheerleader of using ACell in HT procedures, and think autocloning via plucking is the real deal, this business about 'cloning' via the PRP/Acell mixture is at this point overstating the facts. I respect Hitzig's work but he has no proof that these injections alone clone hair or add any extra benefit to PRP alone. There have been a number of recent press releases from various clinics who have been taught this procedure by Hitzig (probably for a fee). These press releases are being picked up by the media which is unfortunate as they are all making unsubstantiated 'cloning' claims. As it stands, Hitzig's Acell/PRP injection photos are less than impressive, to put it generously.