CO2 fractional laser instrument uses the most advanced microlens technology, which allows the laser system to generate a large number of tiny pulse beams. It can be formed of a 0.12mm to 1.25mm, and a depth of 2 mm minimally invasive region in the skin. When these beams work on the skin tissue, it will form a large number of small minimally invasive zone and heat accumulation area or microthermal Zone. Then the epidermal pigment tissue will be partition and gasification. In addition, the accumulation of heat in the dermis will make the skin collagen immediate contraction and promote the skin collagen regeneration. So as to achieve the effect of wrinkle removal, scar removal, stretch mark removal, skin rejuvenation, pigmentation abnormalities and other skin problems healing and improving.