Q-switch Laser energy emits in a split second, producing exceedingly high power with extremely short duration, which can penetrate skin and directly reach the Basal Layer of Epidermis and Dermis to explode the melanin immediately. Melanin
cells are smashed into dine particles, some of them are devoured by immune cells, rest are egested out of body. Pigmentation or tattoo will be gradually removed after serval treatments due to melanin reduction. Finally, complete pigmentation
or tattoo removal can be achieved.
Exposure of skin to nanosecond-domain laser pulses affects the pigmentary system by a process called selective photothermolysis, in which melanosomes and pigmented cells are preferentially altered. Due to the broad absorption spectrum of melanin,
this effect may occur with wavelengths that penetrate to vastly different depths within tissue, potentially producing different biologic responses. The effects of single near-ultraviolet (355 nm), visible (532 nm), and near infrared (1064
nm) pulses of 10