As long as a regular hospital (beauty hospital) can do photon rejuvenation, it's your skin's condition. If it's not serious, it can be relieved by eating some foods containing vitamins. Is your skin yellow? Eat less soy sauce, and eat more tomatoes, oranges and so on. Then sleep more and don't stay up late, and your skin will be better. If the situation is as bad as mine, I can go to Ruili to ask where my skin problem was solved. (They are all made by themselves, so add some points.)