Fractional skin resurfacing is one of the latest advances in non surgical acne scar and stretch marks treatment The collagen present in the skin gets damaged with time due to natural ageing, acne, pollution, injury or scarring which may lead to a dull looking and blotchy skin The CO2 laser is an ablative fractional laser which uses the technology that goes deep in to the skin and stimulates collagen production resulting in a smooth, rejuvenated and younger looking skin