The present invention relates to a pretreatment composition of a process for dyeing or bleaching keratin fibers, comprising at least 5% by weight of one or more particular amino acids and at least 5% by weight of one or more monoalcohols, and alsoto a dyeing or bleaching process using the pretreatment composition.

A cosmetic composition for improved dyeing of keratin fibers is described. The composition comprises alkoxylated organopolysiloxanes and alkoxylated glyceryl esters and/or optionally alkoxylated alkyl glyceryl ethers. The composition may comprise less than 40 wt % water, or may be anhydrous. The composition may further comprise a direct dye, and may be used for bleaching, lightening, or dyeing of keratin fibers.

A cosmetic composition for improved dyeing of keratin fibers is described. The composition comprises alkoxylated organopolysiloxanes and alkoxylated glyceryl esters and/or optionally alkoxylated alkyl glyceryl ethers. The composition may comprise less than 40 wt % water, or may be anhydrous. The composition may further comprise a direct dye, and may be used for bleaching, lightening, or dyeing of keratin fibers.

A process for decolorizing keratinous material which has been colored by the application of at least one pigment is disclosed. The process comprises applying to a dyed keratin material a decolorizing agent comprising at least one amphoteric and/or zwitterionic surfactant and a pH of from about 1.0 to about 4.3. The process further comprises rinsing the decolorizing agent from the keratin material after a contact time. A method for dyeing and later decolorizing human hair is also disclosed, and comprises applying a colorant to the hair to give a dyed hair, the colorant comprising at least one amino-functionalized silicone polymer and at least one pigment; applying to the dyed hair the decolorizing agent to give a decolorized hair; and rinsing the decolorizing agent from the decolorized hair. A multi-component packaging unit comprising a first container comprising the colorant and a second container comprising the decolorizing agent is also disclosed.

A process for decolorizing keratinous material which has been colored by the application of at least one pigment is disclosed. The process comprises applying to a dyed keratin material a decolorizing agent comprising at least one amphoteric and/or zwitterionic surfactant and a pH of from about 1.0 to about 4.3. The process further comprises rinsing the decolorizing agent from the keratin material after a contact time. A method for dyeing and later decolorizing human hair is also disclosed, and comprises applying a colorant to the hair to give a dyed hair, the colorant comprising at least one amino-functionalized silicone polymer and at least one pigment; applying to the dyed hair the decolorizing agent to give a decolorized hair; and rinsing the decolorizing agent from the decolorized hair. A multi-component packaging unit comprising a first container comprising the colorant and a second container comprising the decolorizing agent is also disclosed.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

A hair treatment method including applying to a scalp a cosmetic composition comprising the following components (A), (B) and (C) and having a viscosity of from 1 to 30,000 mPa.Math.s at pH 4.1: (A) a pH buffer; (B) an antioxidant; and (C) a pH-responsive thickener. The method further includes applying to the hair at least one hair treatment agent composition selected from the group consisting of a hair color composition, a hair bleach composition, a perm composition and a relaxer composition.

A hair treatment method including applying to a scalp a cosmetic composition comprising the following components (A), (B) and (C) and having a viscosity of from 1 to 30,000 mPa.Math.s at pH 4.1: (A) a pH buffer; (B) an antioxidant; and (C) a pH-responsive thickener. The method further includes applying to the hair at least one hair treatment agent composition selected from the group consisting of a hair color composition, a hair bleach composition, a perm composition and a relaxer composition.

The present invention relates to a soothing composition, comprising (a) menthol compounds, and (b) one or more cosmetically acceptable carriers.