Cosmetic composition
AssigneeSenju Pharmaceutical Co., Ltd.
InventorsMihoko Ohba, Haruo Ogawa, Wataru Tokue, Masahiro Matsuoka
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Abstract
This invention is to provide a cosmetic composition which comprises dl-.alpha.-tocopheryl 2-L-ascorbyl phosphate phosphate and/or a salt thereof in stabilized condition. The cosmetic composition comprises one or more members of the group consisting of a polyhydric alcohol derivative, urea, and a sub-critical micelle concentration of a nonionic surfactant as formulated with said dl-.alpha.-tocopheryl 2-L-ascorbyl phosphate or salt thereof.
Claims5
A method of stabilizing dl-.alpha.-tocopheryl 2-L-ascorbyl phosphate and/or a salt thereof against decomposition in a cosmetic composition by incorporating in said composition a stabilizing effective amount of one or more members of the group consisting of polyoxypropylene diglyceryl ether, polyoxypropylene methyl glucoside, polyoxyethylene methyl glucoside, urea, and a concentration below the concentration critical for micelle formation of at least one member of the group consisting of polyoxyethylene hydrogenated castor oil, polyoxyethylene octyldodecyl ether and polyoxyethylene monoglyceryl isostearate.
Dependencies are inferred from the claim text.