The present disclosure relates to color-altering compositions. The compositions comprise a hair color-altering agent and at least one carboxylic acid. Certain compositions further comprise at least one amino acid or amino sulfonic acid, and/or a salt thereof selected from the group consisting of taurine, aspartic acid, cysteine, lysine, methionine, tyrosine, phenylalanine, carnitine, a salt thereof, and a mixture thereof. Also provided are kits and methods of using said color-altering compositions.

The invention relates to a cosmetic composition comprising one or more polymers comprising one or more cationic or quaternized acrylamide and/or methacrylamide unit(s); a particular oil-in-water-type silicone emulsion; one or more surfactants; and optionally one or more direct dye(s)/pigment(s). The invention also relates a cosmetic process for washing and/or condition keratin fibres using said cosmetic composition.

Methods and multi-component packaging units (kit-of-parts) for dyeing keratinous material such as human hair are provided. A method for dyeing keratinous material includes applying a first composition (A) and a second composition (B) to the keratinous material. The first composition (A) includes (A1) at least one organic C.sub.1-C.sub.6 alkoxysilanes and/or condensation products thereof, and (A2) at least one colorant compound selected from the group consisting of pigments and direct dyes. The second composition (B) includes (B1) a copolymer of (meth)acrylic acid and maleic acid (anhydride).

A semi-permanent colorant composition is provided that is exhibits excellent color deposit without heat or oxidative treatment, and resists fading throughout several washes.

A method of colouring an eyebrow, the method comprising: (i) contacting the eyebrow with a colouring composition comprising: (a) a dye compound; (b) an organic acid; and (c) an aromatic compound.

A subject matter of the present invention is a process for the treatment of keratin fibers, such as the hair, comprising the application, to the keratin fibers, of a composition comprising at least one alkoxysilane chosen from the compounds of formula (I), at least one non amino silicone of formula (II), the non amino silicone(s) of formula (II) having a weight-average molecular weight of less than or equal to 1500 g/mol and at least one coloring agent chosen from pigments, direct dyes and their mixtures, followed by a stage of application of heat to the keratin fibers covered with the composition, using a heating tool, at a temperature of greater than or equal to 45° C. for a period of time of greater than or equal to 15 minutes.

A solid composition comprising: (a) an aminosilicone polymer, wherein the aminosilicone polymer comprises amino sidechains, and wherein the aminosilicone polymer has a weight average molecular weight of from 10,000 Dalton to 60,000 Dalton; (b) a silicone resin; (c) an ether of a water-soluble polyhydric alcohol; (d) one or more pigments or one or more colored materials; (e) a thickening system comprising: a deposition enhancer, wherein the deposition enhancer is a hydrophilic and non-ionic polymer, and wherein the deposition enhancer has a weight average molecular weight of from 700,000 Dalton to 3,000,000 Dalton; and a thickening polymer, wherein the thickening polymer has a weight average molecular weight of at least 10,000 Dalton, and wherein the thickening polymer is a cationic thickening polymer or is a non-ionic thickening polymer. Also associated methods, kits and uses.

A cosmetic composition for dyeing keratinous fibers is provided herein. The cosmetic composition includes water and from about 6 to about 12 wt % organic solvent relative to the weight of the composition. The organic solvent includes from about 80 to about 100 wt % propylene carbonate and from about 0 to about 20 wt % benzyl alcohol. The cosmetic composition has a pH value in the range from about 1.0 to about 5.5 and at least one acid directly absorbed dye.

A liquid anhydrous composition including (a) at least one water soluble dye, (b) at least one polyol, and (c) a polyglyceryl-10 pentaoleate, (d) at least one volatile oil, wherein the relative mass amount of (a)/(b)/(c) is ranging between 1/0.6/8≤(a)/(b)/(c)≤1/6/18, and a method for preparing the liquid anhydrous composition.

The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and (a2) hyaluronic acid and/or its salt, and application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent,

wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.

Also disclosed are multi-component packaging unit (kit-of-parts) for dyeing keratinous material.