Abstract: The invention relates to cosmetic compositions comprising: A) at least one anionic surfactant and at least one nonionic surfactant, and B) at least one ethylenic copolymer comprising, as a weight percentage relative to the total weight of the polymer: a) 10-60% by weight of one or more monomers of formula (I) as defined below; b) 40-90% by weight of at least one “essentially cationic” monomer chosen from: (i) one or more cationic monomers of formula (IIa), (ii) one or more amphoteric monomers of formulae (IIc) and (IId), and (iii) a mixture of one or more cationic monomers of formula (IIa) with one or more anionic monomers chosen from maleic anhydride and/or those of formula (IIb); and/or with one or more amphoteric monomers chosen from those of formulae (IIc) and (IId), c) and optionally 0-50% by weight of nonionic hydrophilic monomers, excluding methyl acrylate, methyl methacrylate and isopropyl acrylate if they are present in an amount of greater than or equal to 10% by weight.

Abstract: Disclosed herein are cosmetic compositions comprising: at least one carboxylic anionic surfactant, and at least one vinylformamide/vinylformamine copolymer comprising from 10 to 90 mol % of units of formula A: and from 90 to 10 mol % of units of formula B: and processes for use thereof.

Abstract: Disclosed herein are cosmetic compositions comprising: at least one non-ionic surfactant chosen from alkylpolyglycosides and mono- and polyglycerolated surfactants, and at least one vinylformamide/vinylamine copolymer comprising: from 10 to 90 mol % of units of following formula A: and from 90 to 10 mol % of units of following formula B: and a method for treating keratinous substances using said composition.

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: Disclosed herein is a method for preventing the deterioration of the feel of the hair upon repeated application of a hair shaping composition comprising at least one alkoxysilane having at least one solubilizing functional group, wherein the method comprises applying to the hair said shaping composition wherein said composition further comprises at least one silicone.

Abstract: A reshapable hair styling composition comprising, optionally in a cosmetically acceptable vehicle, at least one (meth)acrylic copolymer, wherein the at least one (meth)acrylic copolymer comprises: (a) units derived from at least one monomer chosen from butyl(meth)acrylate monomers, (b) units derived from at least one monomer chosen from hydroxy alkyl(meth)acrylate monomers, and (c) optional units derived from at least one co-polymerizable monomer other than said (a) and (b) monomers, wherein said composition provides a reshapable effect and is a non-rinse composition.

Abstract: The present disclosure relates to double secondary para-phenylenediamine dye compounds. The present disclosure further relates to a dye composition comprising at least one double secondary para-phenylenediamine compound, a process for dyeing keratin fibers using the composition, and a kit for dyeing keratin fibers comprising a separate composition comprising an oxidizing agent.

Abstract: The invention relates to a styling composition comprising, in a physiologically acceptable liquid medium, the combination of at least one film-forming fixing polymer and of at least one crystalline hot-melt polymer which is soluble in the said medium and which has a crystalline melting temperature, measured by differential scanning calorimetry, of between 30° C. and 80° C., and to a process for the thermal remodelling of the hair using this composition.

Abstract: The present disclosure relates to a water-in-oil emulsion which comprises an aqueous phase comprising at least one surfactant; at least one nitrogenous alkaline agent of the aqueous ammonia or amine type and an oily phase comprising at least one cyanoacrylate monomer. The water-in-oil emulsion of the present disclosure can make it possible to reduce ammonia odors during use.

Abstract: The invention relates to 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: A dye composition comprising at least one mixed dye comprising at least two chromophore chosen from azine and (hetero)aromatic nitro compounds, optionally associated with at least one chromophore chosen from methine and carbonyl compounds; a process for dyeing keratin fibers, for example, human keratin fibers, such as the hair, using the composition, a multi-compartment device comprising the composition; and the abovementioned mixed dyes.

Abstract: A cosmetic composition comprising, in a cosmetically acceptable medium, at least one film-forming polymer (A) chosen so that a material, obtained by drying the at least one polymer (A) in an aqueous or alcoholic medium at ambient temperature and at a relative humidity of 50%±5%, exhibits a mechanical profile defined by at least: (a) an elongation at break (?b) of greater than or equal to 160%; (b) an instantaneous recovery (Ri) of from 25 and to 70% after an elongation of 150%; and (c) a recovery (R300) at 300 seconds of from 30 and to 100% after an elongation of 150%; wherein the at least one film-forming polymer (A) comprises at least one monomeric residue comprising an unsaturated acid unit, the acid number of which is greater than 82. Processes for obtaining such cosmetic compositions are also disclosed.

Abstract: Disclosed herein are a dye composition comprising at least one mixed dye comprising at least one chromophore chosen from chromophores of the azo family and the tri(hetero)arylmethane family; and the mixed dyes. Further disclosed herein are a process for dyeing keratin fibers, such as human keratin fibers, using the composition, and a device comprising the composition.

Abstract: Disclosed herein are processes for improving the color of artificially dyed keratin fibers, for protecting the color of artificially dyed keratin fibers and also their cosmetic properties with respect to washing, and/or for unifying the color of keratin fibers after dyeing them, comprising applying to the fibers a cosmetic composition comprising at least one polymerizable cyanoacrylate monomer and at least one conditioning agent and/or at least one additional compound chosen from fillers, mineral and organic bases, and C1-C8 lower alcohols.

Abstract: The present disclosure relates to a composition for dyeing keratinous substances, including keratinous fibers such as the hair, comprising at least one electrophilic monomer, at least one hydrophilic dye and at least one liquid organic solvent. The present disclosure also relates to a process for dyeing keratinous substances and to the use of the composition in dyeing keratinous substances. The composition of the present disclosure improves the resistance of the coloring of keratinous substances to external assaults while exhibiting a broad range of hues and without denaturing the keratinous substances.

Abstract: The present invention relates to a dye composition including at least one mixed dye containing at least one chromophore of methine or carbonyl type or their combinations. The invention furthermore relates to a process for dyeing keratin fibers, especially human keratin fibers, such as the hair, using the composition, and also to a suitable kit. The invention also relates to the abovementioned mixed dyes per se.

Abstract: The present disclosure relates to the process of dyeing human keratinous fibers, such as the hair, with at least one specific direct dye in cosmetic compositions. Also disclosed herein are the direct dyeing and lightening compositions comprising said compounds, and the corresponding dyeing kits.

Abstract: The present invention relates to a method of treating keratinous fibers, especially hair fibers, comprising at least one step of at least partially bleaching the fibers, in which at least one region to be treated is exposed to at least one light pulse, characterized in that this pulse is generated by a diode-pumped laser or by a regenerative amplifier laser.

Abstract: The invention concerns a composition comprising, in a cosmetically acceptable medium, at least 0.02 weight percent relative to the composition total weight, one or several water soluble organosilicon compounds, selected among silanes having one silicon atom and siloxanes having two or three silicon atoms, the organosilicon compounds comprising two hydroxyl groups or groups capable of being hydrolyzed and two groups not capable of being hydrolyzed per molecule, at least one of the groups not capable of being hydrolyzed being a group with a cosmetic effect and at least one of the remaining functional groups being a group with a solubilizing function. The invention is applicable to hair care compositions.

Abstract: The subject of the invention is the use of particular dithiols in a composition for permanent deformation of hair. It also relates to a method for permanent deformation of hair using these dithiols, and cosmetic compositions containing at least one of these dithiols and at least one compound chosen from nonionic, anionic, cationic, amphoteric or zwitterionic polymers and surfactants or cosmetic compositions containing specific dithiols.