Dermapen should not cause scarring or damage to your skin. Instead, the act of penetrating the skin with micro-needles will stimulate collagen and growth factor, which help heal the skin from within. Dermapen is safe and effective for all skin type. In addition to Dermapen, I like to inject PRP (platelet-rich plasma) under the skin to further stimulate collagen production. Platelet is a very potent growth factor. To collect the PRP, 10-20 cc of blood is drawn and centrifuged. The blood cells are discarded, while the serum is collected into syringes for injection, which is also safe as the serum comes from the patient. This treatment should be repeated 3-5 times one month apart and done every 12 months. Meanwhile, patient should have a home regimen to continue the collagen stimulation. A decent home regimen should include retinoid, growth factor, anti-oxidant serum, hyaluronic acid moisturizer, and SPF of at least 30.