Intense pulsed photon system, commonly known as photon, intense light, colored light, soft light, light quantum, etc., is a filtered high-energy pulsed light source with a spectral range of 400 to 1200 nm. It is a non-laser product developed on the basis of laser, and is widely used for the treatment of different types of skin because of its flexible treatment parameter settings and its ability to provide safe and effective, non-ablative treatment, especially suitable for Asian It is especially suitable for the treatment of Asian people. The difference between intense pulsed photon and laser: Both intense pulsed photon and laser are pulsed light, but laser is monochromatic, with only one fixed wavelength. Photons, on the other hand, are multi-color light (so called color light) with wavelengths from 400 to 1200 nm, including green light (532 nm), yellow light (585 nm), red light (694 nm) and infrared light (700+ nm). Clinically, depending on the purpose of treatment, different filters (515 to 755nm) can be applied to filter out the light that is harmful or/and useless to the body, in order to increase the safety and effectiveness of the treatment. Indications for photorejuvenation: (1) fine wrinkles and enlarged pores, increasing skin elasticity and smoothness; (2) pigmented diseases such as freckles, sun spots, age spots, chloasma and hyperpigmentation; (3) vascular diseases such as capillary dilation disorder, skin flushing, rosacea and rosacea; (4) improving skin tone and smoothness, reducing sebum secretion and acne. Non-indications of photorejuvenation: Pregnant women, those with photosensitive skin diseases, those who cannot cooperate with the treatment, brown skin after sun exposure, those taking antioxidants and photosensitizing drugs. The principle of photorejuvenation: (1) Biostimulation, i.e. photothermal action, activates skin fibroblasts, increases the expression of pre-collagen III, causes changes in the molecular structure of dermal collagen fibers and elastic fibers, increases their number, rearranges them, and restores their original elasticity, thus achieving the effect of eliminating wrinkles and reducing pores. Repair photo-damaged skin and improve the appearance of epidermis and dermis. (2) The melanin in skin pigmentation and the hemoglobin in dilated blood vessels can selectively absorb the energy of photons and produce photothermolysis, which increases the local temperature (>80℃), causing damage, pigment rupture and decomposition, and the lesion blood vessels are closed and gradually absorbed and discharged by the body, while the surrounding normal tissues are not damaged. The increase in temperature can also improve the microcirculation of the skin. (3) Inhibit or kill the acne propionibacterium and worm mite microorganisms in the skin. The advantages of photorejuvenation: While treating lesions, it does not cause damage to normal skin, and the treatment process is simple and fast, without anesthesia and recovery time, and you can wash your face, take a bath, apply makeup and work after the treatment, which are in line with today’s trend of cosmetic surgery. It can also be combined with radiofrequency skin tightening technology (electrolysis), cosmetic injection technology, and cosmetic surgery (such as wrinkle reduction) to complement each other and improve the quality of the skin, thus achieving better and more desirable treatment results. Photorejuvenation is only mildly painful: Photorejuvenation uses contact cooling on the skin and applies cold gel, which provides effective cooling to the epidermis and reduces pain, and the treatment feels like a rubber band flicking the skin and a mild heat sensation without anesthesia. Photorejuvenation rarely causes irreversible damage to the body: photons do not cause damage or only slightly reversible damage to tissues with low pigment content, while irreversible damage is caused to diseased tissues, showing a high degree of selectivity, and scar formation is rare when operated correctly. The cold gel effectively protects the epidermis and reduces the possibility of blistering and scarring. The penetration depth of photons is limited, generally reaching only the dermis without causing damage to deeper tissues. As long as you avoid looking directly at the beam, there will be no impact on your vision. When treating around the eyes, the doctor will take certain measures to ensure that the treatment is foolproof. Photons are not rays and do not cause radiation damage to the body. Even sensitive skin rarely has allergic reactions to photons. The age of photorejuvenation: Photorejuvenation is suitable for patients of any age who can cooperate with it. In general, photorejuvenation is particularly beneficial for improving the early signs of skin aging. Photorejuvenation requires multiple treatments: Photorejuvenation is a cumulative and progressive improvement process. In general, a course of five treatments, each about three weeks apart, is required to achieve optimal skin rejuvenation results. To maintain good results, maintenance treatments can be performed every 3 to 6 months after a course of treatment. Effectiveness of Photorejuvenation: Photorejuvenation equipment uses many advanced technologies to increase the comfort of the treatment process and minimize the occurrence of complications while significantly improving the treatment effect. After photorejuvenation, the skin becomes whiter, smoother and more elastic, pores are reduced, sebum secretion is balanced, acne is reduced, pigmentation fades or disappears, wrinkles become lighter or disappear, and skin flushing and capillary dilation are reduced. Most people who have undergone photorejuvenation are happy to recommend it to people around them. Reactions and precautions after photorejuvenation: Photorejuvenation, especially after the first treatment, the color of pigmentation may appear to be aggravated, there is no need to worry at this time, it will become lighter within a week. Pay attention to sun protection and apply sunscreen (SPF≥15) (even if you do not do photorejuvenation, proper sun protection is still beneficial to your skin). There are no special dietary requirements. The maintenance of photorejuvenation effect is closely related to your own living habits and environment, such as the effect of ultraviolet rays, skin care, application of sunscreen and medication, poor working and eating habits, etc. Therefore, special attention should be paid to the adjustment of working and living conditions. Complications of photorejuvenation: Photorejuvenation is extremely safe and very few complications occur, such as blisters and pigmentation, the former disappearing within 1 to 2 weeks and the latter recovering within 6 months. Scar formation is rare.