| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that when a nonionic surfactant is used to produce a fine emulsion such as a nano-emulsion or a micro-emulsion, transparent or slightly translucent appearance of the emulsion and stability of the emulsion are damaged, and further quality of foam formed by the emulsion is damaged.SOLUTION: A cosmetic composition in a state of a nano-emulsion or a micro-emulsion comprises: (a) at least one oil; (b) at least one polyglyceryl fatty acid ester which includes a polyglyceryl part derived from 3 to 6 kinds of glycerin, more preferably 5 to 6 kinds of glycerin; (c) at least one alkyl (poly) glucoside type surfactant; (d) at least one amphoteric surfactant; and (e) water. The cosmetic composition includes a dispersed phase of which diameter is smaller because of the combination of (b) the polyglyceryl fatty acid ester, (c) alkyl (poly) glucoside type surfactant, and (d) amphoteric surfactant. Therefore, the cosmetic composition can be in a state of the nano-emulsion or the micro-emulsion which is transparent or slightly translucent. |
