I'll tell you about the function of vitamin C in Yangshengtang and the way to stay young. The role of vitamin C in Yangshengtang: "It can remove dangerous free radicals in the human body and make it in a sub-health state. Long-term use can make skin fair, transparent and shiny. It also has the function of improving immunity. If you want to penetrate beautiful and fair skin, you can try it. As for the methods of beauty care, it is best to consult customer service directly, because they are the most professional and know best.