The efficacy of skin care products is nothing more than the following four points: Article 1: Cleanliness. This kind of cosmetics mainly focuses on cleaning, which can effectively remove the dirt produced in the process of skin, hair and human secretion and metabolism, including facial cleanser, skin cleanser, facial mask, shower gel, shampoo and so on. All fall into this category. Second: protection: this kind of cosmetics is mainly used to protect our skin, resist cold wind, ultraviolet rays and scorching sun, avoid skin cracking or hair breakage, and keep our skin moist, smooth and elastic. Such as vanishing cream, sunscreen cream, emulsion, anti-crack cream and cold cream used in daily life. All belong to this type. The third type: beautification. This kind of cosmetics can beautify the skin through lip gloss, foundation, mascara, eyeliner and perfume. Reasonable collocation can highlight the charm of white and smooth skin. Fourth: the function of supplementing skin nutrition. This kind of skin care products can effectively supplement the nutrition that the skin lacks, thus increasing the vitality of skin tissue, promoting the metabolism of new cities, and increasing the water content of the skin surface, thus reducing skin wrinkles and slowing down skin aging. Nutritional creams such as ginseng cream, essence cream and pearl cream, as well as various masks and so on.