The commonly used cosmetics of older generation moisten skin pharmaceutical raw materials _ moisten skin

The commonly used cosmetics of older generation moisten skin pharmaceutical raw materials _ moisten skin
3.1 Glycerine (glycerinum)It is third three alcohol in view of structure, it is the colourless, tasteless, viscous and good liquid without bad smell, cheap, steady, employ extensively. There is stronger hygroscopicity, so can't use pure glycerine, otherwise will be from aspiration of a handful of water in skin. Use water: Glycerine =3: A proportion is formulated to play a moistening skin role.3.2 1.2 - third two alcohol (glycolpropylenum)It and glycerine is very similar, viscosity is obviously lower than glycerine. And some take sweet taste, it is colourless, without bad smell, nonpoisonous and having no irritation. Skin have comfort use, can also glycerine buy spend too.3.3 1.3 -The man is two alcohol (butyleneglycol)It is colourless transparent viscous liquid, nearly tasteless, there is sweet taste slightly. It still restrains the fungus except that there is good moistening skin. Because purity is not enough (often mix four alcohol of man) And less likely to use. If can remove the impurity, it is a good moistening skin pharmaceutical, there are good prospects.3.4 Mountain pear alcohol (sorbitol)One has been already six alcohol, the white, crystalline powder without bad smell, nonpoisonous, apt to be soluble in water, chemical property is steady, have good moistening skin, its ability the same as glycerine of moistening skin. Because there is a little sweet and cool good mouthfeel that is often used in the toothpaste.3.5 Alkane sour sodium (prrolidonecarbonylicacid-Na) of ketone carboxyl of pyrroleIt is principal ingredients in NMF, it is colourless, without bad smell and having salt liquid. There is good hygroscopicity, it is excellent than glycerine, third two alcohol, mountain pear alcohol that its wettability power is far. Do not have irritation, so the application far and wide to the skin.3.6 Gather ethylene glycol (polyethyleneglycol)Gather the molecular weight of ethylene glycol from 200-2000. Molecular weight little to moisten skin performance to be kind, it can substitute glycerine and third two alcohol. Famous abroad it for external use and medical makes ground substance, so apply to moistening skin in the cosmetics extensively.3.7 Sodium lactate (netriumlactate)It itself is one of NMF existing in the skin, it has fairly good moistening skin. Plus the Sodium lactate in external application of France's famous brand. Commercial raw materials are 50%~60% aqueous solution.3.8 Mucopolysaccharide (mucopolysaccharide)It lies in the skin naturally, there is good moistening skin.3.9 Sulfuric acid ointment is plain (chondroitinsulfuricacid)It has good moistening skin too.
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