The C6 laser utilizes the principle of photothermal separation and the selective characteristics of the laser. The C6 laser applies a solid pulse type multi-wavelength laser and is controlled by a computer, and the emitted laser penetrates the skin extremely smoothly, selectively destroying the pigment cells, causing the subcutaneous pigment cells to break up and then having the body phagocytes to swallow the fragments and discharge them, thus removing various pigments without a trace. Since the laser does not forcibly remove the pigment, but rather treats it through the skin, there is no scarring after the treatment. The C6 laser has two different wavelengths, 1064nm and 532nm, and uses a new pulse width technology to penetrate the laser energy into the designated skin layer, so that the photo-aging damage to the skin can be fundamentally repaired; the dark and light pigmentation spots can be completely lightened and even disappear from now on; the rough skin texture can be improved and repaired; the enlarged pores and abnormal hair can be solved. Effectively control the growth of capillaries, and a large area of reduction. Second, Q-POL technology (Q-Switch Plane-Obtuse-Laser) Q-Switch-Plane-Obtuse-Laser technology principle: 1, concept: in the ns level of time, the output of very high energy to the target tissue to a plane of irradiation target tissue, to a plane of energy output, and in the spot range of energy uniformity. 2, Application: Light purity: using foreign exquisite crystal polishing technology, light output quality is good and high purity. Light uniformity: planar irradiation, blunt output. Stability and accuracy of energy output: the system is safer, the computer control is upgraded, the energy output scanner is added, the electrode is upgraded to version 5,0, and the standard of detection system is upgraded. The principle of treating pigmentation spots: 1. As the pigmentation site of melasma is only in the epidermal basal layer and dermis, Medlite C6 can make use of 1064nm laser penetrating well to make the laser penetrate the skin directly to the epidermal basal layer and dermis and act directly on the lesion tissue. 2, Medlite C6 mature advanced Q-switching technology will be very strong energy in an instant launch into the lesion tissue, forming a high energy density of giant pulse, the melanocytes to blast. After the cells are blasted, they become tiny particles and are engulfed by the body’s immune cells. 3. At the same time, using the principle of selective photothermal effect, no harm is caused to the surrounding normal tissues. 4, Medlite C6 laser system has stable energy output and uniform spot energy, which makes the treatment effect greatly improved and the treatment is fast and effective. 5. Medlite C6 adopts chronic plucking treatment for melasma, and multiple treatments gradually lighten the pigment, combined with other drugs and microcrystalline grinding, etc. to finally achieve the elimination of melasma.