A Collagen-Boosting Dermaroller: ORA Microneedle Face Roller System While it looks like a miniature version of a medieval torture device, a derma roller or microneedle is anything but painful. How microneedling works, however, is a little unconventional. This apparatus uses 540 fine, stainless-steel needles to fade fine lines, wrinkles, stretch marks and scars. By creating micro injuries on your skin, it tricks your body into producing more collagen and elastin to heal the wound. In the process, microneedles also push your oils, serums and moisturizers deeper into your skin, so you’ll see results faster.