Abstract: Disclosed herein is a cosmetic composition comprising at least one electrophilic monomer and at least one non-reducing organic acid containing from 1 to 12 carbon atoms in a cosmetically acceptable anhydrous medium, and its use for the cosmetic treatment of the hair. Also disclosed herein is a method of cosmetic treatment of the hair which employs the composition.

Abstract: Disclosed herein is a cosmetic composition for treating keratin materials, for example, keratin fibers such as the hair, comprising, in a cosmetically acceptable medium, at least one electrophilic monomer and at least one organic or mineral salt. Also disclosed is a method for cosmetically treating keratin materials comprising applying the cosmetic composition to the keratin materials.

Abstract: The present disclosure relates to compositions for dyeing keratin fibers comprising at least one pigment, at least one polymer PA bearing at least one functional group A, and at least one polymer PB bearing at least one functional group B, wherein the functional groups A and B can form covalent bonds together; to processes for dyeing keratin fibers with the compositions as disclosed herein, and also to the use of this pigment and of these polymers for dyeing keratin fibers in a color-fast manner.

Abstract: The present disclosure relates to a cosmetic reducing composition for permanently reshaping keratinous fibers, such as the hair, comprising, in a cosmetically acceptable medium, at least one reducing agent and at least one photo-oxidizing agent complexed with at least one metal. The present disclosure also relates to a process for permanently reshaping keratinous fibers with the compositions disclosed, and a multi-compartment kit containing such compositions for permanantly reshaping keratinous fibers.

Abstract: The present disclosure relates to an aqueous reducing composition, for permanently reshaping the hair, comprising in a cosmetically acceptable medium, (i) at least one reducing agent, and (ii) at least one organic, inorganic or hybrid solid material which forms a three-dimensional repeating lattice capable of entrapping one or more metal ions or complexes and which has been modified by incorporating at least one oxidizing species chosen from transition metals used as salts, oxides or complexes with a ligand.

Abstract: The invention relates to a composition containing n polymers (P1, P2, . . . Pn) with 10?n?2 dissolved in a common solvent (Sc) which is liquid at room temperature and at atmospheric pressure, the polymers (P1, P2, . . . Pn) and the common solvent (Sc) being chosen so as to form distinct domains, each containing a single polymer after applying the composition to a human keratin material substrate and subsequently removing the common solvent (Sc). Variations thereof.

Abstract: Disclosed herein are a cosmetic composition comprising at least one diazirine active-agent compound comprising a diazirine covalently bonded to a cosmetic active agent, said at least one diazirine-active agent compound and the uses of the composition or of the compound, as well as cosmetic treatment processes using the composition or the compound.

Abstract: Cosmetic compositions comprising at least one compound (a) and/or at least one complexing agent (b) for complexing the at least one compound (a), and, optionally covalently attached to the at least one compound (a) and/or the at least one complexing agent (b), and optionally at least one cosmetic active agent; processes for treating a keratin material that are based on these compositions, aimed at creating on the keratin material a deposit that gives novel cosmetic properties.

Abstract: The invention relates to a cosmetic hair treatment process comprising non-reducing activation of the hair, and then applying to the activated hair at least one cosmetically active compound capable of forming a covalent bond with the activated hair with the aid of one or more functional groups of the compound.

Abstract: Disclosed herein are a cosmetic composition comprising at least one diazirine active-agent compound comprising a diazirine covalently bonded to a cosmetic active agent, said at least one diazirine-active agent compound and the uses of the composition or of the compound, as well as cosmetic treatment processes using the composition or the compound.

Abstract: The present invention relates to the use of organomodified metallic nanoparticles preferably bearing at their surface a self-assembled monolayer of organosulphur compounds. A preferred use is in suspension form for dyeing and/or treating human keratin fibers. The invention also relates to a process for dyeing and/or treating human keratin fibers, by the application to the keratin fibers of such a suspension, and also to compositions used to perform such a process. The invention includes the colouring and/or treating of human keratin fibers, in particular the hair, with the invention suspension. Compositions of the nanoparticles with cosmetic active principles, and uses thereof, also are described.

Abstract: The present invention relates to a cosmetic treatment process for giving keratin fibres shampoo-remanent cosmetic properties, which consists in reducing, in a cosmetically acceptable medium, at least one metal salt in the presence of at least one reducing agent, directly on the keratin fibre to form the corresponding native metal in situ.

Abstract: The present invention relates to the use of a cosmetic composition for treating keratin materials, comprising at least one hydrophobin, and also to processes for cosmetically treating keratin materials.

Abstract: This invention relates generally to the use, for example in the cosmetics field and in particular for the treatment and styling of the hair, of an aqueous dispersion of particles of the nucleus/casing (core/shell) type containing compounds with reactive silyl functions, as well as to a process for treatment and a process for styling of the hair using such an aqueous dispersion. The dispersions and particles also make up a part of this invention, as do their methods of manufacture.

Abstract: The present invention relates to cosmetic compositions comprising a biotin derivative and/or an agent for complexing this derivative and, covalently bonded to one of these two compounds or to both of them, at least one active agent other than dyes.

Abstract: Cosmetic compositions comprising at least two polymers comprising complementary chemical functional groups, capable of forming a coat on a keratin material, such as hair, a cosmetic process comprising the use of these polymers on the keratin material, such as the hair, and also their use for producing a coat on the hair.

Abstract: The invention relates to a photoactivatable compound comprising a support molecule chosen from carbon-containing and/or sulfur-containing and/or nitrogen-containing and/or phosphorus-containing nonpolymer compounds, polymers and oligomers and to which are covalently bonded at least two species containing chemical groups which, after irradiation between 200 et 450 nm, are converted into reactive species capable of reacting with chemical groups belonging to other molecules. The invention also relates to a cosmetic composition comprising at least one photoactivatable compound according to the invention, and also to a cosmetic treatment process using this composition.