First, the injector (1) uses HA fillers to create a beautiful shape. (2) Then, the physician isolates growth factors from the patient’s blood.  (3) When these growth factors enter the face (injected by the physician), then muti-potent stem cells become activated to grow new tissue.  This new tissue includes new collagen, new fatty tissue (for smoothness), and new blood vessels (for a healthy glow).
That’s why it’s imperative that when you receive treatment (whether medical or for physical changes), you ensure that the needles used are either new or were properly sanitized. Before beginning a procedure, be sure to ask about their sanitizing procedures. Ask if you can watch them open a new needle or sanitize a used one. If they don’t use disposable needles, ask to watch the needle undergo its sanitization, and check that their sanitizer has been recently inspected. This may feel awkward at the time, but a true professional will understand your concern and the risks that are involved.
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.
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