If you’ve ever considered or undergone Restylane injections or Juvederm, you may be interested in a newer filler called Selphyl, also known as the “vampire filler.” Why the creepy name? Selphyl is made out of patients’ own blood; it is used to contour the face and fill in skin depressions, including wrinkles and acne scars.

Essentially, a doctor will draw a patient’s blood, use a centrifuge to spin the blood and remove the platelets and fibrin, and then inject the substance into the patient’s face (or other body parts) in order to fill out hollows and other imperfections. A plastic surgeon or dermatologist can perform the procedure in about 20 minutes. Results can be achieved in just one session, though more may be necessary.

According to the Selphyl website, when the platelet mixture (platelet-rich fibrin matrix or PRFM) is injected under the skin, skin cell growth and collagen support occurs. There are no independent studies that prove these claims as of yet.

So, why opt for Selphyl if there are already other dermal fillers out there that work just fine? One of the major benefits of the blood filler is the fact that it is natural. Because it is created from the patient’s own body, no chemicals are involved and allergic reactions virtually never occur. One of the most serious side effects of fillers like Juvederm is granuloma, a lump that can form as an effect of the immune system reacting to something foreign being put into the body. There have been no such effects reported from those who have used Selphyl.

The only negatives about this FDA approved vampire facelift are that it takes about three weeks to see noticeable results (whereas procedures like Restylane produce immediate effects), and the fact that there are no studies about the long-term effects of Selphyl. There are reports of itching, burning, and discoloration at the injection site, as blood is not normally present in the areas being treated.

Price varies, but Selphyl can cost you up to $2,000 per injection. While expensive, it may not be a bad investment considering claims that results may last up to 18 months. Plus, it’s a good way to avoid invasive surgical procedures and use your own biology to aid your anti-aging quest.