Known as Micro Fractional Collagen Induction Therapy, or micro-needling. The Rejuvapen® utilizes 9 precisely spaced micro needles to create invisible micro perforations into the epidermis and the top layer of the dermis. As a result, the skin speeds up its natural healing process, thus producing collagen and elastin to repair the micro-perforations. This ultimately result in repairing imperfections of the skin and tightening of the skin. Because of the self-repairing nature of the skin following treatment, micro needling is a 100% natural form of skin renewal from the inside out.