| abstract |
PROBLEM TO BE SOLVED: To provide an oil-based cosmetic which is effective in preventing erythema and blackening of skin due to ultraviolet rays and which is excellent in usability. (A) General formula (1): (Wherein, R 1 to R 4 are the same or different alkyl groups having 1 to 32 carbon atoms, a is a number of 1 to 1000, b and c are each a number of 0 to 1000, d is a number of 1 to 100, x and y each represent a number of 1 to 8, except that b = c = 0.) And a polysiloxane-polyoxyalkylene copolymer represented by the formula (1) and (B) an ultraviolet ray protective agent. |