Ma new cosmetic procedure uses tiny needles to rejuvenate the skin. Woma t's a way to create a more youthful appearance. Wendy Rigby has the story, new at . Wendy Rigb 1 microscopic needles are at the heart of a new procedure called Dermapen, being used for the last couple of months at Contourlase Body Institute in San Antonio. Melinda Rosentha 'm not very old, I'm 35. But I can see the difference and the changes in my face. Wendy Rigb elinda Rosenthal's treatment starts with the application of platelet rich plasma. A concentrated concoction spun down from her own blood. The Dermapen uses fine needles on a piston that's connected to a driver that varies the speed and depth. It pushes the platelet rich plasma into the dermis, jump starting a healing process and harnessing the body's own power to rejuvenate. Dr. David Mozersk he needles are going back and forth, in a minute, maybe 150 times. And then they make microscopic little holes in the skin... Wendy Rigb ome patients say it feels like a scratchy cat's tongue on their skin. Melinda says the pain is minimal. Melinda Rosentha n some spots when you don't have too much muscle in that area, you can feel it a little more, but it just feels like little needles going across the skin. Not painful. Wend n just a few weeks, patients end up with a more youthful, more rejuvenated complexion. Dr. David Mozersk here's no medical down time, and the results have been amazing. Wendy Rigb ere's an example, before Dermapen on the left and just one day after on the right. Dr. David Mozersk t's a maintenance thing, so if you want to have nice skin, maybe a treatment like this every year or so would be in order. Wendy Rigb r. David Mozersky usually recommends two to three treatments and they cost $600. Results may last at least a year. Reporting live, Wendy Rigby, KENS Five, eye-witness news.