First of all, we should know that the human skin cuticle contains 10% - 20% water. When the water is sufficient, the skin will appear moist and elastic. When the water in the cuticle is less than 10%, the skin will appear dry, wrinkled and even desquamated. In moisturizing cosmetics, there are four kinds of raw materials that can moisturize: oil components, hygroscopic small molecule compounds, hydrophilic large molecule compounds and restorative components, oil components: such as Vaseline, olive oil, almond oil, etc. these raw materials can form oil film on the skin surface after use, which is equivalent to a layer of fresh-keeping film on the skin, which can slow down the cuticle layer The function of water loss is to keep the water content of cuticle. Hygroscopic small molecule compound, its moisturizing ingredients are mostly small molecules, polyols, acids and salts, etc., they have water absorption, can absorb water from the surrounding environment, and then improve the water content of the skin cuticle, common are glycerin, butanediol, sodium pyrrolidone carboxylate, lactic acid and its salts, etc. Our commonly used moisturizing cream moisturizing cream formula generally contains both hygroscopic small molecules and oils that can form oil film. Hydrophilic macromolecular compounds, generally polysaccharide compounds and some polymers, can form a spatial network structure after swelling with water, which can combine free water in it and make the water not easy to lose, and then play a role of moisturizing. The last one is restorative ingredients, such as lipid components such as ceramide phospholipid, vitamins, etc. it is necessary to know that the cuticle is the natural barrier of human body. If the barrier effect is reduced, the skin will lose water easily. Adding raw materials with the barrier effect of enhancing the cuticle in the moisturizing products can effectively reduce the loss rate of skin water dispersion and achieve the moisturizing effect, which is just like the cuticle The repairman. August has entered the autumn, the weather began to become dry, in the season when everyone's skin will be dry, the beauty of the women need a lot of water, and mask products as a key part of women's skin care is indispensable. At present, there are many brands of mask on the market, and the quality is good and bad. How to choose a safe, mild and non irritating mask has become the focus of the student party's skin care.

        In moisturizing cosmetics, there are four kinds of raw materials that can moisturize: oil components, hygroscopic small molecule compounds, hydrophilic large molecule compounds and restorative components, oil components: such as Vaseline, olive oil, almond oil, etc. these raw materials can form oil film on the skin surface after use, which is equivalent to a layer of fresh-keeping film on the skin, which can slow down the cuticle layer The function of water loss is to keep the water content of cuticle. Hygroscopic small molecule compound, its moisturizing ingredients are mostly small molecules, polyols, acids and salts, etc., they have water absorption, can absorb water from the surrounding environment, and then improve the water content of the skin cuticle, common are glycerin, butanediol, sodium pyrrolidone carboxylate, lactic acid and its salts, etc. Our commonly used moisturizing cream moisturizing cream formula generally contains both hygroscopic small molecules and oils that can form oil film. Hydrophilic macromolecular compounds, generally polysaccharide compounds and some polymers, can form a spatial network structure after swelling with water, which can combine free water in it and make the water not easy to lose, and then play a role of moisturizing. The last one is restorative ingredients, such as lipid components such as ceramide phospholipid, vitamins, etc. it is necessary to know that the cuticle is the natural barrier of human body. If the barrier effect is reduced, the skin will lose water easily. Adding raw materials with the barrier effect of enhancing the cuticle in the moisturizing products can effectively reduce the loss rate of skin water dispersion and achieve the moisturizing effect, which is just like the cuticle The repairman. August has entered the autumn, the weather began to become dry, in the season when everyone's skin will be dry, the beauty of the women need a lot of water, and mask products as a key part of women's skin care is indispensable. At present, there are many brands of mask on the market, and the quality is good and bad. How to choose a safe, mild and non irritating mask has become the focus of the student party's skin care.