IPL is actually a treatment of an instrument. Strictly speaking, IPL is not a laser. It is a strong light therapy device, like the strong light of the sun. The strong light treatment illuminates the face, and some black Things or some red things, it will absorb heat and remove melanin or red blood. Of course, if photorejuvenation is done according to the course of treatment for a long time, it will also achieve a skin rejuvenation effect. This needs to be done all year round and often. Generally, photorejuvenation manufacturers recommend doing it once every three weeks to a month, five times in a row. But in the process of doing it, people found that it is easy to thin the skin after photorejuvenation, so don’t do it so frequently, usually two to three times a year, and it is not recommended to do it when the weather is hot, July and August Before or after, when the weather is cooler, and the sun exposure is not particularly strong, do it twice a year to achieve the effect of freckle removal and skin rejuvenation, and its effect is still very certain.