JP2015030689A5 - - Google Patents

Claims (8)

4-alkyl-les sol Sino - selected from le and / or a 0.001% to 5% by weight salts thereof against the total amount of the skin treatment composition, ascorbic acid, the group consisting of ascorbic acid derivatives及originator these salts and 0.01% to 10% by weight of one or more against the total amount of the skin treatment composition is, one or selected from the group consisting of tranexamic acid, tranexamic acid derivative及originator these salts the above species met skin external preparation containing a 0.01 wt% to 10 wt% relative to the total amount of the skin treatment composition,
An external preparation for skin, comprising one or more selected from the group consisting of oxalic acid and salts thereof and glutathione.   The skin external preparation according to claim 1, wherein the oxalic acid and / or salt thereof is contained in an amount of 0.01% by mass to 2% by mass based on the total amount of the skin external preparation.   The skin external preparation according to claim 1 or 2, wherein the glutathione is contained in an amount of 0.01 mass% to 0.3 mass% with respect to the total amount of the external preparation for skin. The 4-alkylresorcinol is 4-n-butylresorcinol, 4-n-hexylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, 4- (1-phenyl) ethylresorcinol, 4- (2-phenyl) ethylresorcinol 4-isooctyl resorcinol, 4-amyl resorcinol, 4-isoamyl resorcinol, 4-isobutyl resorcinol, 4-tertiary butyl resorcinol, 4- (1-methylpropyl) resorcinol, 4- (1-methylbutyl) resorcinol, 4- (1-ethylpropyl) resorcinol, 4- (1-ethyl-2-methylpropyl) resorcinol, 4- (1-isopropyl-2-methylpropyl) resorcinol, 4- (1-dimethyl-3- Chirubuchiru) resorcinol, characterized in that 4- (1-butylpentyl) resorcinol, is at least one selected from 4- (1-isobutyl-3-methylbutyl) group consisting of resorcinol and 4-isostearyl resorcinol, The composition as described in any one of Claims 1-3.   The said ascorbic acid derivative is ascorbic acid phosphate ester or ascorbic acid-2-glucoside, The skin external preparation as described in any one of Claims 1-4 characterized by the above-mentioned. The external preparation for skin according to any one of claims 1 to 5, wherein the tranexamic acid derivative is an alkylamide, ester, or multimer of tranexamic acid.   It is a water-containing liquid cosmetic, The skin external preparation as described in any one of Claims 1-6 characterized by the above-mentioned.   It is a cosmetic for whitening, The skin external preparation as described in any one of Claims 1-7 characterized by the above-mentioned.