1.Fractional or carbon dioxide (CO2) lasers are one of the big advances in laser technology for skin rejuvenation and resurfacing in the last decade. It`s important to keep in mind that CO2 laser skin resurfacing is not the same as general skin rejuvenation,which is ablative to your skin,and that will need a 2-3 weeks time for healing.

2.For good quality machine the laser emitter will offer much stable laser shots energy , and the energy acting on each treatment area is average and stable, so in the skin healing period, there will not appear uneven skin tone problem; also due to the laser emitter energy is strong, so for deep scar, it will have much better treatment effect. For the most important side , the good co2 laser machine `s laser shots dots is small and uniform distribution, with smaller injuries being made by the laser, the skin can heal faster.