The overwhelming advertisements made the term “photorejuvenation” a household name overnight, and then it evolved into “color light”, “compound color light”, “ultra color light” and “E light”, Then it evolved into “color light”, “complex color light”, “super color light”, “E light”, etc., which were introduced into China. The various introductions and exaggerations have left many beauty lovers at a loss as to what is photorejuvenation? What is the difference between these photons and colored light? The IPL is medically known as intense pulsed light. Photon technology is an innovative technology that can treat skin problems and improve skin quality at the same time by using the good physical effects of photons. The specific performance of photon technology. The photon skin rejuvenation is a medical skin rejuvenation technology that applies photon technology instruments to solve skin problems and improve skin quality at the same time. In recent years, cosmetic institutions have been competing with each other to “update” their skin rejuvenation devices, and there are “color light skin rejuvenation”, “super color light skin rejuvenation”, “composite skin rejuvenation”, “complex skin rejuvenation” and “complex skin rejuvenation”. The facial wrinkles are a sign that the skin is starting to age, and the wrinkles are mainly caused by the loss of collagen in the skin. 80% of the total weight of the skin is collagen, which is the main substance to resist wrinkles. Under normal circumstances, human collagen is gradually lost with age. The photon technology, is the use of bandwidth 500nm to 1200nm wavelengths of light irradiation skin, a variety of different wavelengths of light only react to specific tissues, scientific research shows that certain wavelengths of light can stimulate the production of skin collagen, and the quantity and quality of collagen determines the quality of skin, this is the theoretical basis of photorejuvenation, photorejuvenation is the use of strong light source irradiation skin This is the theoretical basis of photorejuvenation, which is the use of a strong light source to rejuvenate the skin. This is the theory behind photorejuvenation, which is the principle of using a strong light source to rejuvenate the skin. Photon technology mainly helps people solve two aspects of skin problems, one is to treat surface skin imperfections; the other is to improve the quality of the skin. The effect of photorejuvenation has been exaggerated. However, this is not the case. First of all, photon does not change the nature of the skin, nor does it change the body’s own metabolism, nor does it slow down aging, but only removes the aging manifestations that have already appeared through the treatment. Another major function of photon technology is to treat pigmentary and vascular diseases of the skin, but the treatment of diseases like melasma requires comprehensive measures, and photon technology alone cannot be done to solve the surface discoloration. In addition, the effective threshold and damage threshold of photorejuvenation are close to each other, that is, to achieve the effectiveness of the treatment will easily cause skin damage, that is, the slightest carelessness will easily cause tissue damage and complications, and these requirements for doctors’ professional knowledge and clinical experience are very high. The actual fact is that you can find a lot of people who are looking for the best results in the market.