Abstract: The present disclosure relates to compositions comprising at least one soluble fluorescent dye and at least one compound comprising an acid functional group, and to processes using this composition.

Abstract: The present disclosure relates to a cosmetic composition comprising at least one fluorescent dye comprising at least one fluorescent compound, and at least one cationic polymer with a charge density of at least 1 meq/g; processes that incorporate this cosmetic composition and to a kit comprising this cosmetic composition. The present disclosure also relates to the process for dyeing human keratin materials, including artificially dyed or pigmented hair and dark skin, with a lightening effect, comprising applying to the keratin materials a cosmetic composition comprising at least one fluorescent dye comprising at least one fluorescent compound and at least one cationic polymer with a charge density of at least 1 meq/g.

Abstract: The present disclosure relates to a dyeing composition for human keratinous fibers, such as the hair, comprising, in a suitable dyeing medium, at least one oxidation dye, and at least one dicationic compound. The disclosure further relates to the dyeing methods and dyeing kit using the dye composition.

Abstract: The present disclosure relates to a composition for dyeing human keratin fibers, such as the hair, comprising, in a medium suitable for dyeing, at least one direct dye and at least on dicationic compound. Also disclosed herein is a process for dyeing and lightening human keratin fibers, such as the hair, with the compositions disclosed, as well as a the corresponding dyeing kits.

Abstract: Disclosed herein is a dye composition for keratin fibers, for example, human keratin fibers such as the hair, comprising, in a medium suitable for dyeing, at least one compound chosen from ortho- and &agr;-dialdehyde compounds as defined herein and at least one sulphur compound as defined herein. Also disclosed is the use of this composition for dyeing and/or optically lightening keratin fibers, and also to the dyeing process using this composition.

Abstract: The invention relates to a dye composition for dyeing keratin fibers, comprising at least one heterocyclic compound containing at least two aldehyde functional groups and at least one nitrogen compound. The invention also relates to the use of this composition for dyeing keratin fibers, and to a multi-compartment dyeing device using this composition.

Abstract: The invention relates to the use of thiophenes and bisthiophenes as agents making it possible to impart a volume effect and/or a visual effect to human keratin fibers and more particularly the hair.

Abstract: The invention relates to the use of a composition comprising at least one conductive polymer in a cosmetically acceptable medium, said polymer being in soluble form in said medium, as, or for the manufacture of, cosmetic products for giving a visual effect to human keratin fibers and more particularly the hair, and also, when said conductive polymer absorbs in the visible region, as, or for the manufacture of, cosmetic products intended to color said fibers.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one enzymatic oxidizing agent and at least one oxidation dye chosen from the pyridine compounds and acid addition salts, of formula (I) and processes comprising such compositions.

Abstract: Compositions, such as ready-to-use compositions for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye, and at least one enzymatic system, the enzymatic system comprising (i) at least one enzyme immobilized in at least one sol-gel matrix and optionally (ii) at least one suitable donor, wherein said at least one enzyme is chosen from 2-electron oxidoreductases, 4-electron oxidoreductases and peroxidases, with the proviso that when said at least one enzyme is chosen from 2-electron oxidoreductases, said at least one enzymatic system comprises at least one suitable donor, and with the proviso that when said at least one enzyme is chosen from peroxidases, said at least one enzymatic system further comprises at least one source of hydrogen peroxide chosen from hydrogen peroxide and at least one enzymatic system which generates hydrogen peroxide in situ, as well as to processes for dyeing

Abstract: Disclosed herein is a rapid dyeing process for human keratin fibers, such as hair, comprising applying to the keratin fibers at least one dye composition comprising, in a medium suitable for dyeing, at least one direct dye chosen from arylmethane dyes, cationic azo dyes, methine dyes, azomethine dyes and azine dyes; maintaining the composition in contact with the keratin fibers for a leave-in time of less than 5 minutes; and rinsing the treated keratin fibers; wherein the resulting coloration has, according to the CIELAB notation, an L* value of less than 40 and/or a C* value of greater than 20, such as greater than 25, when the composition is applied to natural hair containing 90% white hairs at a temperature of 27° C.±5° C. for a period of 4 minutes, for a bath ratio of 10. Further disclosed herein is a process for stripping the keratin fibers colored with the direct dye, comprising applying an oxidizing or reducing treatment in a time period of less than 5 minutes.

Abstract: The invention concerns a ready-to-use composition for bleaching human keratinous fibres previously dyed with direct dyes, in particular hair, comprising at least a 4-electron oxidoreductase enzyme, and at least an enzymatic mediator. The invention also concerns a bleaching method using said composition.

Abstract: The invention concerns a ready-to-use composition for bleaching naturally pigmented human keratinous fibres, in particular hair, comprising at least a 4-electon oxidoreductase enzyme, and at least an enzymatic mediator. The invention also concerns a bleaching method using said composition.

Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, and, in particular, human keratin fibers such as the hair, including at least one oxidation base, at least one ammonia-generating 2-electron oxidoreductase type enzyme, and at least one donor for the enzyme, as well as a dyeing process using this composition.

Abstract: The invention relates to a nondyeing cosmetic composition intended for lasting shaping or for texturization of keratinous materials containing, in a cosmetically acceptable medium, at least one compound as agent capable of oxidative polymerization and at least one agent catalyzing this oxidative polymerization reaction, and a method for treating keratinous materials with said cosmetic composition.

Abstract: The invention concerns a ready-to-use composition for bleaching human keratinous fibres previously dyed with oxidation dyes, comprising at least a 4-electron the oxidoreductase enzyme, and at least an enzymatic mediator. The invention also concerns a bleaching method using said composition.

Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, and, in particular, human keratin fibers, such as the hair, having at least one oxidation dye, at least one oxidoreductase enzyme, and at least one specific salified or chemically modified chitosan, as well as to the oxidation dyeing process using this composition.

Abstract: The present invention relates to dyeing compositions containing, in a medium appropriate for dyeing, at least one oxidation dye precursor and/or one or more couplers, a ketose as reducing agent and at least one laccase as oxidizing agent, to the use of the compositions for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, to dyeing processes using the compositions, and to dyeing kits using the compositions.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, comprising, in a medium suitable for dyeing, at least one enzymatic oxidizing agent and at least one oxidation dye chosen from the pyridine compounds and acid addition salts, of formula (I) and processes comprising such compositions.

Abstract: An oxidizing cosmetic composition for treating keratin fibers, such as human keratin fibers and more particularly human hair, comprising, in a support which is suitable for keratin fibers: