Abstract: A powder hair dye composition includes component (A) to component (C). The content of the component (A) at the time of use is 1 to 5 mass %. The component (A) is sodium percarbonate. The component (B) is sodium carboxymethyl cellulose. The component (C) is a thickener other than the component (B).

Abstract: A hair dye composition is characterized by containing (A) HC BLUE No. 2, (B) DISPERSE VIOLET 1, and (C) at least one of HC YELLOW No. 2 and HC YELLOW No. 4 and has a pH of 7-11. The mass ratio of the content of (A) HC BLUE No. 2 to the content of (B) DISPERSE VIOLET 1 is preferably 1 to 30. The hair dye composition preferably further contains (D) DISPERSE BLACK 9.

Abstract: A hair cosmetic composition to be used for dyeing or bleaching hair or for removing dye from hair is applied to the hair in a foamy form obtained by mixing a powdery agent and a liquid agent and foaming the mixture by shaking.

Abstract: Provided are an HDC activation inhibitor and an antipruritic agent which are effective in animals against the itch caused by a itch generation mechanism different from the well-known one. An HDC activation inhibitor or antipruritic agent which is at least one member selected from (1) a particular flavonoid, (2) a tannin, (3) chlorogenic acid, (4) a particular stilbenoid, or a glucoside or pharmaceutically acceptable derivative of any of (1) to (4) given above, or (5) a particular crude drug extract, (6) walnut polyphenol.

Abstract: A two-fluid dispenser capable of reducing odor, even when one of two fluids dispensed in foam has pungent odor. The dispenser includes: a first and a second dispenser container each including an upper surface from which a stem protrudes and is configured to dispense a fluid therein in foam in response to the stem depressed; and a dispenser tool fixedly fitted over the containers. The dispenser tool includes a dispenser head communicating with the containers and including a nozzle, so that when the dispenser head is depressed, the fluids are dispensed from the containers through the nozzle. The dispenser head includes a fluid guide mechanism to guide the fluids from the containers to be dispensed in foam through the nozzle such that the fluids have a layered pattern in which a first fluid layer is at least partly covered by a second fluid layer.

Abstract: A two-fluid dispenser capable of reducing odor, even when one of two fluids dispensed in foam has pungent odor. The dispenser includes: a first and a second dispenser container each including an upper surface from which a stem protrudes and is configured to dispense a fluid therein in foam in response to the stem depressed; and a dispenser tool fixedly fitted over the containers. The dispenser tool includes a dispenser head communicating with the containers and including a nozzle, so that when the dispenser head is depressed, the fluids are dispensed from the containers through the nozzle. The dispenser head includes a fluid guide mechanism to guide the fluids from the containers to be dispensed in foam through the nozzle such that the fluids have a layered pattern in which a first fluid layer is at least partly covered by a second fluid layer.

Abstract: Provided is a hair-treatment composition containing an amphoteric surfactant having a structure represented by general formula (1) below, and a sugar nonionic surfactant. In general formula (1), R1 represents an alkyl group the carbon number of which is 6 to 20; R2 represents a methyl group, an ethyl group, or a hydroxyethyl group; R3 represents a methyl group, an ethyl group, or a —CH2COOH group; and n is an integer from 1 to 3.

Abstract: Provided is a hair-treatment composition containing: a first amphoteric surfactant having a structure represented by general formula (1) below; at least one type of second amphoteric surfactant selected from the group consisting of fatty acid amide propyldimethylaminoacetic acid betaines, alkyldimethylaminoacetic acid betaines, N-acylaminoethyl-N-2-hydroxyethylaminocarboxylic acid salts and N-acylaminoethyl-N-carboxymethoxyethylaminocarboxylic acid salts fatty acid amide propyldimethylaminoacetic acid betaines, alkyldimethylaminoacetic acid betaines; and an acidic amino acid. In general formula (1), R1 represents an alkyl group the carbon number of which is 6 to 20; R2 represents a methyl group, an ethyl group, or a hydroxyethyl group; R3 represents a methyl group, an ethyl group, or a —CH2COOH group; and n is an integer from 1 to 3.

Abstract: A hair cosmetic composition to be used for dyeing or bleaching hair or for removing dye from hair is applied to the hair in a foamy form obtained by mixing a powdery agent and a liquid agent and foaming the mixture by shaking.

Abstract: A hair dye composition containing an organic compound having not more than 4 carbon atoms, which has both of a —SH group and a —NH2 group and does not have a —COOH group, and also containing at least one member selected from aromatic compounds in which given substituents are each attached to meta positions of a mononuclear benzene ring structure and ?-naphthol as a coupler of an oxidation dye intermediate, in which the blending amount of each member as the coupler is in a range from 0.01 to 0.5% by mass. An oxidation hair dye composition containing the hair dye composition. Wherein the hair dye composition and the oxidation hair dye composition are capable of preventing a change in the color tone of the hair dyeing even during long-term storage are provided.

Abstract: Provided is a hair-treatment composition containing: a first amphoteric surfactant having a structure represented by general formula (1) below; at least one type of second amphoteric surfactant selected from the group consisting of fatty acid amide propyldimethylaminoacetic acid betaines, alkyldimethylaminoacetic acid betaines, N-acylaminoethyl-N-2-hydroxyethylaminocarboxylic acid salts and N-acylaminoethyl-N-carboxymethoxyethylaminocarboxylic acid salts fatty acid amide propyldimethylaminoacetic acid betaines, alkyldimethylaminoacetic acid betaines; and an acidic amino acid. In general formula (1), R1 represents an alkyl group the carbon number of which is 6 to 20; R2 represents a methyl group, an ethyl group, or a hydroxyethyl group; R3 represents a methyl group, an ethyl group, or a —CH2COOH group; and n is an integer from 1 to 3.

Abstract: Provided is a hair-treatment composition containing an amphoteric surfactant having a structure represented by general formula (1) below, and a sugar nonionic surfactant. In general formula (1), R1 represents an alkyl group the carbon number of which is 6 to 20; R2 represents a methyl group, an ethyl group, or a hydroxyethyl group; R3 represents a methyl group, an ethyl group, or a —CH2COOH group; and n is an integer from 1 to 3.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains amino-modified silicone, dimethicone, and polyethylene glycol having a number average molecular weight of 10,000 or more.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains a fatty acid ester, a linear-chain higher fatty acid, polyethylene glycol having a number average molecular weight of 6,000 or more, an alkaline agent, and an oxidizing agent. The fatty acid ester is an ester of a fatty acid having a carbon number of 10 or less and an alcohol.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains diglycerin, 1,3-butylene glycol, and polyethylene glycol having a number average molecular weight of 10,000 or more.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains a fatty acid ester, a linear-chain higher fatty acid, polyethylene glycol having a number average molecular weight of 6,000 or more, an alkaline agent, and an oxidizing agent. The fatty acid ester is an ester of a fatty acid having a carbon number of 10 or less and an alcohol.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains diglycerin, 1,3-butylene glycol, and polyethylene glycol having a number average molecular weight of 10,000 or more.

Abstract: A hair cosmetic composition used for dyeing, bleaching, or destaining hair contains amino-modified silicone, dimethicone, and polyethylene glycol having a number average molecular weight of 10,000 or more.

Abstract: A hair dye composition is provided that comprises a first agent containing an oxidation dye and an alkaline agent, and a second agent containing hydrogen peroxide, the hair dye composition being used after mixing the first agent and the second agent. The hair dye composition contains an ascorbic acid compound and the hydrogen peroxide in amounts of from 1.0 to 5.0% by mass and from 0.3 to 1.6% by mass, respectively. The alkaline agent is contained in an amount of from 3.0 to 30 mmol per 100 g of the hair dye composition.