Micro-needling (Collagen induction therapy) is a minimally invasive procedure used to improve skin texture, reduce acne scarring, pore size and to tighten skin. Micro-needling is done by a special pen device with tiny needles, that creates precise micro punctures in the top layer of skin at a high speed, which forces skin to naturally produce new collagen and elastin, and, therefore, rejuvenate itself.