Photorejuvenation is a broad-spectrum non-invasive photodynamic therapy that uses a photorejuvenator to produce strong pulses of light to stimulate the skin, causing chemical changes in the molecular structure of collagen and elastic fibers in the dermis, increasing their number and rearranging them to restore their original elasticity, thus achieving the therapeutic effect of eliminating wrinkles and reducing pores. In addition, the photothermal effect can enhance the function of blood vessels and improve the microcirculation of the skin. It also enhances the immunity and resistance of the skin. The efficacy of photorejuvenation 1, photons can penetrate the skin without damage and be selectively absorbed by the pigment masses in the tissue and the hemoglobin in its blood vessels, so that the dilated blood vessels, pigment masses and pigment cells can be destroyed and decomposed without destroying the normal tissue cells, thus achieving the effect of removing spots and whitening and removing red blood. 2.Photon works on skin tissue to produce photothermal and photochemical effects, prompting the renewal and rearrangement of collagen fibers and elastic fibers, restoring the elasticity of facial skin, eliminating or reducing small wrinkles and reducing pores. Thus, it can play the role of skin anti-aging and skin rejuvenation. 3.Photon can effectively act on the sebaceous glands in the skin to regulate and inhibit the function of sebaceous glands, thus reducing oil secretion and improving oily skin. 4.Photon can penetrate the skin and reach the root of the hair follicle in the deep layer of the skin, destroying the center of hair generation, so as to achieve the role of skin hair removal. 5.The treatment instrument emits 420nm strong blue light, which penetrates the skin and acts on the porphyrins in the sebaceous glands. The porphyrins are stimulated to release monomorphic oxygen ions, which efficiently kill Propionibacterium acnes and eliminate inflammation. Suitable for people 1, facial spots, whether sunlight or freckles, usually these spots give you the feeling of a “dirty face”, and can not be covered up with powder. 2.Facial sagging, fine wrinkles and age-related skin changes begin to appear. 3.Want to change the texture of the skin, hope that the skin elasticity is better, the skin is smoother, improve the skin dull. 4.Rough facial skin, enlarged pores, acne marks, and dilated facial capillaries. 5.Inflammatory acne. 6.Hirsutism. Treatment course Every 4 weeks or so, 5-7 times for a course of treatment. After the course of treatment can be treated every six months to a year to consolidate the effect. The skin rejuvenation contraindication 1, within a month after receiving or likely to receive treatment after the sun exposure candidates. People with photosensitive skin and those who have used photosensitive drugs. 2.Pregnant women. Pregnant women are a group of people who are in an extraordinary physical and psychological period. 3.Epileptic patients, diabetic patients, candidates with bleeding tendency. 4.Patients with severe heart disease and high blood pressure. 5.Seekers with keloid and infected skin at the treatment site. Because keloid may not be a wound, mere scratching or mechanical stimulation may form a keloid, and the stimulation of bright light may trigger the same reaction.