Intense Pulse Photonics is an innovative technology that can be used to address a variety of benign skin lesions such as epidermal scarring, age spots, birthmarks, blood vessels and removal of unwanted hair. It offers a safe, non-invasive method to adapt to different skin conditions, an approach known as photorejuvenation. It is currently most used to treat and fight skin imperfections and skin texture aging caused by ageing and solar UV exposure. Photorejuvenation is not completely effective in getting rid of, but to some extent gradually improves, the above mentioned skin problems. It can penetrate to the deeper layers of the skin and selectively act on the subcutaneous pigments or blood vessels to break down pigmentation and close abnormal capillaries, while the photons can also stimulate the growth of subcutaneous collagen. So for daily skin maintenance care, photorejuvenation is the best choice. 1.For those who use topical A acid ointment or spot removal products, it is recommended to start treatment after 1 week of drug suspension; 2.No laser, dermabrasion or fruit acid peeling cosmetic items one week before photorejuvenation treatment; 3.Oral matching nutrition ACMETEA 20 days in advance of surgery, one bag twice a day, 12 grams per bag, fully prepared for the operation; 4.Avoid strong sun exposure or doing 5.Inflamed or pus-filled skin is not suitable for treatment; 6.For those who take oral A acid, it is recommended to stop taking it for 3 months before starting treatment; 7.If you have a history of photosensitivity, skin lesions or immune system abnormalities, you need to communicate with your doctor. Contraindications 1.People who have received or are likely to receive sun exposure after treatment within one month. 2.Pregnant women. Pregnant women are physiologically and psychologically in an extraordinary period of time. 3.Patients with epilepsy, diabetic patients, and those with bleeding tendency. 4.Patients with severe heart disease and high blood pressure. 5.Keloid and those with skin infection 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.