Abstract: The present invention relates to a process for treating straightened keratin fibres, in which a composition comprising at least one carboxylic acid in its acid or salified form, at a concentration of greater than or equal to 2%, and at least one non-cellulosic polymer and/or at least one fatty substance, the pH ranging from 3 to 8, is applied to the straightened keratin fibres.

Abstract: The present invention relates to a process for treating straightened keratin fibres, in which a composition comprising at least one carboxylic acid in its acid or salified form, at a concentration of greater than or equal to 2%, and at least one non-cellulosic polymer and/or at least one fatty substance, the pH ranging from 3 to 8, is applied to the straightened keratin fibres.

Abstract: The invention relates to a cosmetic composition comprising: (a) at least 2% by weight, relative to the total weight of the composition, of one or more compounds chosen from urea and/or urea derivatives, (b) one or more polymeric thickeners chosen from nonionic, cationic, amphoteric polymeric associative thickeners or anionic polymeric associative thickeners comprising one or more acrylic and/or methacrylic units. The invention also relates to the use of this composition for straightening keratin fibres. Finally, the invention relates to a process for straightening keratin fibres.

Abstract: The present invention relates to a process for treating straightened keratin fibers, in which a composition comprising at least one carboxylic acid in its acid or salified form, the pH being greater than 8, is applied to the straightened keratin fibers.

Abstract: The present invention relates to a cosmetic composition comprising: —one or more keratin fiber conditioning agents; —one or more polymers of formula (I): in which: —Z1 represents a divalent group —CH2-T or -T-CH2—; T denoting an oxygen or sulfur atom, or a group chosen from the groups N(R2), N(R2)—C(O), C(O)—N(R2), S—(CO), (CO)—S, O—(CO) and (CO)—O; —Z2 represents a group OR1 or R8—CH2—NR3R4; —Z3 represents a group OR5 or R6; —p1 is equal to 1; —p2 is equal to 0 or 1; —R2 and R3, which may be identical or different, represent a hydrogen atom or a group R7; R1, R5, R6, R7 and R8, which may be identical or different, represent a C1-C6 and preferably C1-C2 alkyl group; and R4 represents a C1-C6 and preferably C1-C2 alkyl group, or a C5-C6 and preferably C6 cycloalkyl group such as cyclohexyl; R3 and R4 may optionally form, with the nitrogen atom that bears them, a 5- to 8-membered heterocycle comprising from 1 to 3 heteroatoms; —W represents a divalent polymer chain.

Abstract: The present invention relates to a cosmetic composition comprising hydrophobic silica aerogel particles and at least one particular acrylic thickening polymer. The invention also relates to a cosmetic treatment method using said composition, especially a hair treatment method that makes it possible in particular to delay or even prevent regreasing of the hair and/or of the scalp.

Abstract: The present invention relates to a process for treating straightened keratin fibers, in which a composition comprising at least one carboxylic acid in its acid or salified form, at a concentration of greater than or equal to 2%, and at least one non-cellulosic polymer and/or at least one fatty substance, the pH ranging from 3 to 8, is applied to the straightened keratin fibers.

Abstract: The present invention relates to a process for cosmetic treatment of the hair, in particular a hair shaping process, comprising the following steps: applying to the hair a composition comprising a liquid solvent system and a dispersion of particles that are insoluble in the solvent system, the particles comprising a material capable of changing state under the effect of an external stimulus, before, during or after the applying of the composition, shaping the hair to the desired hairstyle, then or simultaneously, applying one or more stimuli enabling the change of state of the material, stopping the stimulus or stimuli for obtaining fixing of the hairstyle.

Abstract: The present invention relates to a cosmetic composition comprising hydrophobic silica aerogel particles and at least one polymer bearing a sugar unit. The invention also relates to a cosmetic treatment method using said composition, especially a hair treatment method that makes it possible in particular to delay or even prevent regreasing of the hair and/or of the scalp.

Abstract: The present invention relates to a cosmetic composition comprising: from 0.5% to 15% by weight, relative to the total weight of the composition of one or more fatty-chain silanes of formula (I) below and/or oligomers thereof: R1Si(OR2)z(R3)x(OH)y (I) in which formula (I): R1 represents a linear or branched alkyl or alkenyl group comprising from 7 to 18 carbon atoms, R2 and R3, which may be identical or different, represent a linear or branched alkyl group comprising from 1 to 6 carbon atoms, y denotes an integer ranging from 0 to 3, z denotes an integer ranging from 0 to 3, preferentially from 1 to 3 and better still equal to 3, and x denotes an integer ranging from 0 to 2, with z+x+y=3, one or more fixing polymers chosen from anionic, amphoteric and non-ionic fixing polymers.

Abstract: Cosmetic process for caring for and/or making up keratin materials The present invention relates to a cosmetic process for caring for and/or making up keratin materials, comprising at least the steps consisting in: (i) placing all or part of the surface of the said keratin material in contact with an effective amount of at least one emollient active agent chosen from ionic liquids based on guanidinium or dialkylimidazolium, non-volatile or sparingly volatile oils, waxes, thiol derivatives, phosphines, alkaline bases chosen from potassium hydroxide, ammonia, monoethanolamine, triethanolamine, calcium hydroxide, alkaline salts of amino acids, urea and urea derivatives, and guanidine derivatives, and mixtures thereof, (ii) placing the said surface in contact with at least one cosmetic active agent, different from the said emollient active agent, to be incorporated into the keratin at the surface of the said keratin material, and (iii) where appropriate, heating the said surface of the keratin material, steps (ii

Abstract: The present invention relates to a cosmetic composition comprising: —one or more keratin fibre conditioning agents; —one or more polymers of formula (I): in which: —Z1 represents a divalent group —CH2-T or -T-CH2—; T denoting an oxygen or sulfur atom, or a group chosen from the groups N(R2), N(R2)—C(O), C(O)—N(R2), S—(CO), (CO)—S, O—(CO) and (CO)—O; —Z2 represents a group OR1 or R8—CH2—NR3R4; —Z3 represents a group OR5 or R6; —p1 is equal to 1; —p2 is equal to 0 or 1; —R2 and R3, which may be identical or different, represent a hydrogen atom or a group R7; R1, R5, R6, R7 and R8, which may be identical or different, represent a C1-C6 and preferably C1-C2 alkyl group; and R4 represents a C1-C6 and preferably C1-C2 alkyl group, or a C5-C6 and preferably C6 cycloalkyl group such as cyclohexyl; R3 and R4 may optionally form, with the nitrogen atom that bears them, a 5- to 8-membered heterocycle comprising from 1 to 3 heteroatoms; —W represents a divalent polymer chain.

Abstract: The present invention relates to a cosmetic composition, especially a hair composition, comprising at least one anionic or nonionic associative polymer, at least one fixing polymer and at least one nonionic surfactant comprising predominantly fatty chains having from 8 to 14 carbon atoms, the weight content of nonionic surfactants comprising predominantly fatty chains having from 8 to 14 carbon atoms in the composition being greater than or equal to 2%.

Abstract: The present invention relates to a cosmetic composition comprising an aqueous dispersion of polysiloxane/polyurea copolymer and a silane, and to a cosmetic treatment process using said composition.

Abstract: The present invention relates to a process for treating straightened keratin fibres, in which a composition comprising at least one carboxylic acid in its acid or salified form, the pH being greater than 8, is applied to the straightened keratin fibres.

Abstract: The present invention relates to a process for treating straightened keratin fibres, in which a composition comprising at least one carboxylic acid in its acid or salified form, at a concentration of greater than or equal to 2%, and at least one non-cellulosic polymer and/or at least one fatty substance, the pH ranging from 3 to 8, is applied to the straightened keratin fibres.

Abstract: The present invention relates to a method for the permanent reshaping and in particular straightening of keratinous fibers, in particular human keratinous fibers, such as the hair, comprising a stage of application, to the keratinous fibers, of a cosmetic composition comprising one or more non-silicone fatty substances in a content of greater than or equal to 40% by weight, with respect to the total weight of the composition, and a stage of heating the keratinous fibers using an iron, after the application of the said cosmetic composition.

Abstract: The present invention relates to a method for the permanent reshaping and in particular straightening of keratinous fibres, in particular human keratinous fibres, such as the hair, comprising a stage of application, to the keratinous fibres, of a cosmetic composition comprising one or more non-silicone fatty substances in a content of greater than or equal to 40% by weight, with respect to the total weight of the composition, and a stage of heating the keratinous fibres using an iron, after the application of the said cosmetic composition.

Abstract: The invention relates to a cosmetic composition comprising: —from 2% to 20% by weight, relative to the total weight of the composition, of one or more fatty-chain alkoxysilanes of formula (I) below: R1Si(OR2)3 in which R1 represents a linear or branched alkyl or alkenyl group, comprising from 7 to 18 carbon atoms, and R2 represents a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and —one or more non-siliceous fatty substances. The invention also relates to a cosmetic treatment process using the said composition, and to the use of the said composition for cosmetic treatment of the hair.

Abstract: The present invention relates to a cosmetic composition comprising:—at least 0.1% by weight, relative to the total weight of the composition, of one or more fatty-chain alkoxy silanes of formula (I) below: R1Si(OR2)3 (I) in which R1 represents a linear or branched alkyl or alkenyl group, comprising from 7 to 18 carbon atoms, and R2 represents a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and—one or more cationic polymers. The invention also relates to a cosmetic treatment process using the said composition. This composition can be used in particular for haircare, and especially facilitates the conditioning of the hair.