At his age, the problem should be hydration. In addition to drinking plenty of water every day, he should also pay attention to hydration and wash his face with facial cleanser (exfoliating can be done regularly after deep cleaning). Recommend the one suitable for herbs. Because it doesn't hurt the skin. )。 . Then you can use whitening toner (you will feel tight after using it). . You can usually use some essence, sunscreen needs to be used every day (from bottom to top, lasting for a long time), and it is recommended to use 18, 20 times (often outdoors, the multiple can be higher, but not too high, applied several times a day), mask should be applied 2-3 times a week, and sleep mask should be available. . . I feel wet on my face every morning. . . That's all. The most important thing is persistence. Skin care is not a matter of one or two days. As long as you relax, your skin will feel accordingly. . . That's all. . I hope your friend will have good skin soon. . . And you. . . Hey hey.