Influence of Cosurfactant on the Properties of Facial Cleansers
A facial cleanser containing about 3 wt%of different cosurfactants was prepared,including anionic,amphoteric and non-ionic surfactants.The results showed that sodium cocamoylamphoacetate decreased congealing point and energy storage modulus,while lauryl sulfobetaine and PEG-12 methyl gluco dioleate increased both.However,with cosurfactants sodium cocoamphoacetic acid or PEG-120 methyl gluco dioleate,the foaming capacity was reduced,while the other cosurfactants increased the foaming capacity to varying extents.Meanwhile,PEG-120 methyl glucose dioleate increased the hardness,viscosity and adhesion,as well as lauryl ether-4 increased viscosity and adhesion in the facial cleanser sample.In addition,PEG-120 methyl gluco dioleate enhanced the removal of sebum in the detergency test.
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