| abstract |
(57) [Abstract] [Solution] (A) Formula (1) [R 1 is a C1 to C40 hydrocarbon group which may be substituted with OH or a hydrocarbon group having a C1 to C5 hetero atom, R 2 , R 3 , R 4 , R 5 and R 6 are H or OH A C1-C20 hydrocarbon group which may be substituted with Is an amine derivative represented by -O- or -CO-O-] or an acid addition salt thereof, (B) urea or a compound represented by the formula (2): (R 7 is a C10-C24 alkyl group or alkenyl group) A whitening agent containing one or more whitening agents selected from α-monoglyceryl ether represented by and (C) L-ascorbic acid and its derivative, hydroquinone derivative, kojic acid and its derivative, and placenta extract Cosmetics. [Effect] It has an excellent effect of suppressing melanin pigmentation, has a very excellent skin whitening effect, and is effective for the prevention and treatment of spots and freckles due to sunburn and the like. |