Simply put, it is three steps: cleaning-conditioning-moisturizing. Cleaning, the main purpose is to wash away dirty things, conditioning, usually emulsion. Moisturizing, lotion, cream, essence. Generally speaking, moisturizing is the most basic, no matter what skin type, no matter what season, moisturizing can not be delayed. Of course, moisturizing can relieve your skin, and it can also be used as a cosmetic to make it better absorbed. There is also sun protection to prevent skin damage. You should also find something that suits you, and different skin needs are different. Personally, I think it's important to eat more fruits!