The surfactant is what? The surfactant used for cosmetics

From the chemical structure, surface active agent end as the hydrophobic group, the other end of hydrophilic group. Surfactant has a place for dirt, thickening, foaming, the function such as wetting, has been widely used in industrial and agricultural production, chemical sector called industrial monosodium glutamate. Nowadays the world surfactant annual output value reached 16 million t, these surfactants are widely used in cosmetics raw materials. Surfactant has three features: decontamination effect, produce clean class cosmetics using this feature; Emulsification, cream, shampoo with surfactant as emulsifier; Wet permeability function, such as hair dye, perm agent contact the skin, creams, lipsticks for exhibition. Many different kinds of surfactants, usually according to their degree of dissociation in aqueous solution is divided into two categories: non ionic surfactant and ionic surfactant; The latter is divided into three categories, anionic surfactants and cationic surfactants, and two type ionic surfactant. Non ionic surfactant is puzzled from into ionic surfactant in water, in the cosmetics, the variety is more, the dose is very large, are mainly two categories: polyoxyethylene type and polyols type; Polyoxyethylene type with polyoxyethylene fatty alcohol ether, polyoxyethylene alkyl phenol ether, polyoxyethylene fatty acid fat, polyoxyethylene fatty amides, etc; Polyols type: alkyl alcohol amine, sorbitan monostearate, etc. ; Used in cosmetics, emulsifier, foaming agent, thickening agent, dispersant has more use of non ionic surfactant.