How does photorejuvenation work? Photorejuvenation is actually a cosmetic treatment using pulsed intense light. The treatment itself simulates the pulse laser (Q-switched laser) to carry out the treatment, and also makes use of the penetration of light to the skin and the absorption of pigment particles to the strong light to carry out the treatment. Figuratively speaking, the powerful pulsed light is used to “disperse” the pigment particles and make the pigmentation spots subside. Because the intense light is not as single and pure as laser, contains a variety of light sources, so the role of the skin is multi-faceted, such as the elimination of various pigmented spots to lighten the skin, enhance skin elasticity, eliminate fine wrinkles, improve facial capillary dilatation, improve the face of large pores and skin roughness, but also to improve the yellowing of the skin color and so on, so the photon rejuvenation has a very good cosmetic effect. However, the energy of light is not as high as that of laser, so for the treatment of some very stubborn pigmented spots, such as nevus of Ota, photorejuvenation may be a little weak, and at this time, it is still necessary to use laser to cooperate with the treatment. What are the side effects of photorejuvenation? Photorejuvenation has almost no side effects and is very safe, which is a very big advantage of photorejuvenation treatment. However, as with any treatment, the treatment itself has two sides. Photorejuvenation is, on the one hand, a very good treatment for pigmented skin disorders, but it also carries the potential risk of causing pigmented changes in the skin. If the indications chosen are incorrect, or the parameters chosen for the treatment are faulty; coupled with individual differences in people, a small number of people may develop hyperpigmented spots, and a very small number of people may develop acne-like eruptions and blisters. Therefore, the treatment should be carried out in a regular hospital and abuse is not allowed. The practice of describing photorejuvenation as absolutely safe, infinitely exaggerating its efficacy, and even performing the treatment in a beauty salon is irresponsible and should be corrected. Who is suitable for photorejuvenation treatment? In general, the following four categories of people are more suitable for photorejuvenation treatment. Category 1: People with spotty pigmented spots on the face, be it sunlight or freckles, usually these spots give you a feeling of dirty face, which can never be covered up despite the common use of powder to cover them up. These people are more suitable for photorejuvenation treatment. Category 2: The face begins to sag, fine wrinkles appear, and age-related skin changes occur. This category is also more suitable for photorejuvenation treatment. Category 3: want to change the skin texture, want better skin elasticity, smoother skin, and improve skin dullness. Fourth category: rough facial skin, enlarged pores, acne marks, and dilated facial capillaries. These people can choose photorejuvenation treatment. Usually the treatment effect of the first three groups of people is more obvious, and the treatment effect of the fourth group of people is relatively poor. In addition, photorejuvenation is the same as other cosmetic treatments, the better your skin condition, the better the treatment effect. If your skin condition is not ideal, photorejuvenation treatment may have a good performance, but in general, it is worse. Who is not suitable for photorejuvenation? Generally speaking, photorejuvenation treatment is very safe and has few contraindications, but necessary attention should be given to the treatment of the following patients: photosensitive people and patients with recent application of photosensitive drugs. Such people are sensitive to light and prone to skin damage after treatment. Pregnant women. Because of the varying degrees of pain associated with the treatment, possible potential effects on fetal development cannot theoretically be completely ruled out. Systemic use of retinoids (at least 2 months after cessation of use before treatment). Such patients may have a potential temporary weakening of skin repair function. Treat melasma patients with caution. Photorejuvenation does not solve all the problems of melasma, but on the contrary can sometimes make the situation worse. Patients with unrealistic expectations of the treatment effect. Although photorejuvenation has outstanding cosmetic abilities, it is only a very common medical procedure that should not be exaggerated and deified, it does not change the nature of the skin therefore unrealistic expectations should not be held. Do I need special skin care after the treatment? No special skin care is needed after the treatment, but it is recommended to use skin care products under the guidance of a doctor, including stopping the use of all functional cosmetics (including all kinds of blemish creams, wrinkle creams, etc.), prohibiting the use of all kinds of chemical peeling treatments (the so-called peeling treatments), prohibiting the use of skin grinding and the use of scrubs and cleansing creams. Since the cause of pigmentation spots as well as all kinds of photoaging is sun exposure, sun protection and the use of sunscreen are important. Of course, the application of skin moisturizers is also required. Will my skin age faster after photorejuvenation treatment? This is a common concern and a very smart question. Theoretically speaking, photoaging is not really an aging of the skin, it is the result of the cumulative exposure of light to our skin, which eventually “ages” the skin, and this effect of sunlight actually begins to accumulate in childhood. We can also notice that the wrinkles of Caucasians are more obvious than ours, probably because their skin is less resistant to light. After photorejuvenation treatment, the structure of the skin changes, which is manifested by the restoration of collagen and especially elastic fibers in the skin. As long as the protection is strengthened in the future, the aging state of the skin will appear gradually, but it will be slower than that of those who have not had the treatment, and will not be aggravated to accelerate the aging of the skin.