Mechanisms of Action of Fractionated 532nm and 1064nm Picosecond Laser for Skin Rejuvenation

Full face ablative resurfacing and fractional ablative resurfacing techniques are treatments of choice for facial rejuvenation of aged and photoaged skin. Both techniques were shown to be highly effective for dyschromia, fine lines and wrinkles [1-3]. Although better results are obtained with full resurfacing procedures, it comes with more downtime and more serious risks, when compared to fractional resurfacing techniques[3]. Because of the higher risk, fractional resurfacing techniques have essentially replaced full resurfacing techniques today for facial rejuvenation. Albeit, fractional resurfacing is not without risk, and scarring and infections, although rare, have been reported [4].