1.Pixel laser treatment principle Pixel laser is a new generation of international photonic medical cosmetic technology. It can evenly penetrate the skin during the process of light pyrolysis to remove pigmentation and repair the bump. During the treatment process, only the lesions are affected by the laser, while the other normal tissues are not affected at all. The skin tissues that are affected by the pixel laser can remove pigmentation and stimulate collagen growth, while the tissues that are not affected by the laser can be used as heat diffusion areas to avoid possible side effects such as thermal damage, and to promote skin healing. 2.The advantages of pixel laser The clinical mechanism of pixel laser is the theory of “micro-trauma repair”. Skin tissue has the ability to repair itself after trauma, and can heal and repair itself after trauma damage. If the area of trauma is too large, the result of repair is scarring, while when the trauma is small, the skin can recover completely. Each tiny beam of light from the fractional pixel laser is a tiny trauma to the tissue, which is enough to initiate the regenerative repair function of the tissue. Each time the pixel laser acts on the skin, it only produces thermal shock on a tiny area of the skin, leaving part of the skin unaffected. Its action on the skin tissue can remove pigmentation and stimulate collagen growth, while the skin tissue that does not act can be used as a thermal diffusion area to achieve the pixel laser principle of safe treatment, avoiding possible side effects such as thermal damage and promoting faster healing of the skin. 3.The indications of pixel laser The main skin problems that pixel laser targets are: chloasma, pigmentation, poor skin tone, poor skin texture, large pores, fine wrinkles, superficial scars, superficial acne scars treatment, etc. (1) Large pores and rough skin. (2) Removal of fine wrinkles, tightening of skin, and increase of skin elasticity (3) For the grinding of acne scars. (4) Removal of superficial pigmentation, increase skin elasticity and glossiness. (5) Suitable for moderate to mild acne redness removal treatment.