| abstract |
(57) [Summary] [Object] To provide a cosmetic oil agent which has a good feeling in use, is non-irritating to the skin, and which is stable in terms of physicochemical properties, and a cosmetic material containing the same. A polyoxyethylene dialkyl (or alkenyl) ether having a melting point of 40 ° C. or less and an IOB of 1 or less represented by the general formula (1) is an essential component. R 1 O- (EO) a-R 2 (1) [wherein, R 1 and R 2 represent an alkyl group or an alkenyl group having 8 to 36 carbon atoms. EO represents an oxyethylene group, and a (average number of moles of ethylene oxide) is 0.5. To 15 are shown. ] |