CO2 LASER RESURFACING IN CHICAGO, IL CO2 Laser Resurfacing is used in our office to help improve skin appearance and its overall quality. This helps treat sun damage, reduce pore size, skin texture and help stimulate collagen. What the CO2 laser does is it penetrates the skin and completely breaks up the epidermis. And by breaking up the skin, the body produces collagen to help rejuvenate the damaged skin. The CO2 laser is used to help with wrinkles, scarring, pigmentation, lesions on the skin and unwanted hair.