Microneedling, or collagen induction therapy, is a cosmetic procedure that involves puncturing the skin with tiny, sterilized needles using a handheld drum or pen-shaped device. These tiny wounds cause the skin to produce more collagen and elastin by stimulating the skin to repair itself naturally through a process called dermal remodeling. This process heals and helps to rejuvenate the skin. Microneedling can be used to treat things like acne scarring, sun damage, surgical scars, burns, enlarged pores, wrinkles, and stretch marks.