Abstract: The hair cosmetic composition of the present invention, which is a one-agent type or a multi-agent type hair cosmetic composition, contains, the following components (A) to (D): (A): a compound selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): a thickening polymer, showing viscosity of 100 mPa·s or higher when measured as a 10 mass % aqueous solution, at 20° C., within at least a part of pH region of 4 or lower, and using a B-type viscometer; and (D): water.

Abstract: The present invention relates to a process for straightening and frizz reduction of hair which leaves hair in one part straight and volumeless and the remaining part may still have the curly appearance but not frizzy at all. It has been found out when treating hair at the parts where the straight appearance is preferred with a composition comprising higher concentration of hair straightening ingredient and straightening the said part with an iron at relatively higher temperature and treating the remaining parts with a composition comprising the same straightening ingredient at a lower concentration and treating the said parts with an iron at relatively lower temperature provides hair structures which appear to be straight and with low volume in one part which is the part closer to the scalp and, curly and voluminous but not frizzy at the remaining parts which is usually the lengths.

Abstract: The present invention relates to a method of coloring keratin fibers, especially human hair, which delivers intensive, long lasting, brilliant colors and provides improved grey coverage. Kit therefore is disclosed as well. The method of colouring hair involves treating hair prior to colouring with an alkaline reducing agent.

Abstract: The hair cosmetic composition of the present invention, which is a one-agent type or a multi-agent type hair cosmetic composition, contains, the following components (A) to (D), the component (C) content, relative to the total composition of the hair cosmetic composition, being 0.1 mass % or higher and lower than 20 mass %: (A): a compound selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): an organic solvent having a boiling point of 100° C. or higher; and (D): water.

Abstract: The invention is directed to a three-part bleaching composition and method comprising pigments in a third composition. It has unexpectedly been found that an third composition comprising pigments increase the contrast between bleaching composition and keratin fibers to a degree which allows for a more accurate judgement of the desired end point of bleaching during the bleaching process.

Abstract: The present invention relates to a process for semi-permanent straightening and permanent shaping hair, especially human hair, for improved and milder semi-permanent straightening and permanent shaping. It is found out that when commonly used permanent shaping reducing composition is mixed with another composition comprising predominantly carboxylic acids, the permanent shaping effect of the composition is improved, homogeneous shaping of hair fibers is achieved and natural cosmetic properties of hair is maintained and hair may be semi-permanently straightened before such process.

Abstract: The present invention relates to a stable powder composition comprising hair direct dyes which is used for dyeing hair after mixing with one or more aqueous compositions. The composition comprises one or more direct dyes selected from HC Red 18, HC Blue 18, and HC Yellow 16, one or more alkanolamine as alkalizing agent, an organic and/or an inorganic pulverulent excipient.

Abstract: The present invention relates to a method of coloring keratin fibers, especially human hair, which delivers intensive, long lasting, brilliant colors and provides improved grey coverage. Kit therefore is disclosed as well. The method of colouring hair involves treating hair prior to colouring with an alkaline reducing agent.

Abstract: The present invention relates to a hair bleaching process for improved and milder bleaching, especially for bleaching human hair. The ready-to-use bleaching composition comprises carboxylic acids in addition to bleaching persalts and oxidizing agents added at the time of use.

Abstract: The present invention relates to a hair dyeing composition comprising select hair direct dyes and a reducing agent in order to color hair homogeneously, intensively and durably.

Abstract: The hair cosmetic composition of the present invention, which is a one-agent type or a multi-agent type hair cosmetic composition, contains, the following components (A) to (D): (A): a compound selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): a direct dye; and (D): water.

Abstract: The present invention relates to a process for treating hair, especially human hair, wherein the hair is bleached and dyed in a subsequent order with compositions providing improved and milder bleaching and dyeing of hair. The inventors of the present invention have unexpectedly found out that when commonly used bleaching compositions and oxidative dyeing compositions are mixed with another composition comprising predominantly carboxylic acids, the bleaching and dyeing effects of the compositions are improved, homogeneous bleaching and dyeing of hair fibers is achieved and natural cosmetic properties of hair is maintained.

Abstract: The present invention relates to a hair dyeing process for improved and milder dyeing of hair, especially human hair. The ready-to-use dyeing composition comprises carboxylic acids in addition to dyeing agents and oxidizing agents in order to improve dyeing efficiency with less loss of natural hair properties.

Abstract: The hair cosmetic composition of the present invention, which is a one-agent type or a multi-agent type hair cosmetic composition, contains, the following components (A) to (D), the component (C) content, relative to the total composition of the hair cosmetic composition, being 0.1 mass % or higher and lower than 20 mass %: (A): a compound selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): an organic solvent having a boiling point of 100° C. or higher; and (D): water.

Abstract: The hair cosmetic composition of the present invention, which is a one-agent type or a multi-agent type hair cosmetic composition, contains, the following components (A) to (D): (A): a compound selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): a thickening polymer, showing viscosity of 100 mPa·s or higher when measured as a 10 mass % aqueous solution, at 20° C., within at least a part of pH region of 4 or lower, and using a B-type viscometer; and (D): water.

Abstract: The present invention relates to a process for treating hair wherein the hair is semi permanently shaped and subsequently reshaped with the application of an aqueous composition comprising catechin and/or resorcinol and their derivatives.

Abstract: The hair treatment method includes the following steps (i) to (iii) for dyeing hair and at the same time deforming hair semi-permanently or permanently: (i) a step of dyeing hair through a hair treatment including applying a dye to the hair, (ii) a step of applying the following components (A), (B), and (C) to the hair, (A): one or more compounds selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): water, and (iii) a step of heating and shaping the hair.

Abstract: The present invention relates to a hair bleaching process for improved and milder bleaching, especially for bleaching human hair. The ready-to-use bleaching composition comprises carboxylic acids in addition to bleaching persalts and oxidizing agents added at the time of use.

Abstract: The present invention relates to a process for permanent shaping and dyeing carried out one after another with compositions providing improved and milder shaping and dyeing of hair, especially human hair. The inventors of the present invention have unexpectedly found out that when commonly used permanent shaping and dyeing compositions are mixed with another composition comprising predominantly carboxylic acids, the permanent shaping and dyeing effects of the compositions are improved, homogeneous permanent shaping and dyeing of hair fibers is achieved and natural cosmetic properties of hair are maintained.

Abstract: The present invention relates to a hair dyeing process for improved and milder dyeing of hair, especially human hair. The ready-to-use dyeing composition comprises carboxylic acids in addition to dyeing agents and oxidizing agents in order to improve dyeing efficiency with less loss of natural hair properties.