Abstract: The invention relates to a cosmetic method for treating human body odors. Said method includes: (i) applying, to the skin, a composition containing a polymer (I): wherein R? is, separately, H or an acetyl grouping or a —CO-L-X grouping, the polymer containing at least one R??—CO-L-X grouping, L being a divalent hydrocarbon group containing 1 to 20 carbon atoms, X denoting a photoactive azide or diazirine group, and n ranging from 5 to 2000; then (ii) exposing the skin to visible light. The method used on the skin can also be used on materials for deodorizing malodorous environments such as shoe soles or clothing.

Abstract: The invention relates to the dyeing of human keratinous fibers, in particular the hair, using anionic direct dyes or acid dyes having a tetraalkylammonium counterion of formula (I), with Col(?)m, R1, R2, R3, R4, m, and n as defined in the description. A subject-matter of the invention is a dyeing composition comprising an anionic dye of formula (I) and a method for dyeing keratinous fibers, such as the hair, employing the said composition. A subject-matter of the invention is likewise novel dyes of formula (I) and their uses for the coloring of keratinous fibers. This composition makes it possible to obtain a chromatic, powerful and particularly persistent coloring on keratinous fibers.

Abstract: The invention relates to i) a process for treating keratin fibres, in particular human keratin fibres such as the hair, employing a) at least one oxidized polysaccharide, in particular oxidized inulin, and b) at least one (poly)saccharide with amine group(s); ii) a composition comprising the ingredients a) and b); iii) the use of a) and b) to treat keratin fibres, in particular human keratin fibres such as the hair, and iv) a multi-compartment kit or device comprising a) and b). The invention makes it possible to obtain good hair-conditioning cosmetic properties, with a long-lasting effect.

Abstract: The invention relates to a cosmetic method for treating human body odors. Said method includes: (i) applying, to the skin, a composition containing a polymer (I): wherein R? is, separately, H or an acetyl grouping or a —CO-L-X grouping, the polymer containing at least one R??—CO-L-X grouping, L being a divalent hydrocarbon group containing 1 to 20 carbon atoms, X denoting a photoactive azide or diazirine group, and n ranging from 5 to 2000; then (ii) exposing the skin to visible light. The method used on the skin can also be used on materials for deodorizing malodorous environments such as shoe soles or clothing.

Abstract: The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising the topical application to the skin of a cosmetic composition comprising a grafted polysaccharide polymer (I) and exposure of the treated skin to light radiation, polymer (I) being of formula: PS—(CO—NH-L-X)a(COOH)b in which PS denotes the basic backbone of the polysaccharide bearing the carboxylic acid groups; L is a divalent hydrocarbon-based group containing from 1 to 20 carbon atoms; X denotes a photoactive group of azide or diazirine type; a denotes the content of COOH groups substituted with the group —NH-L-X; b denotes the content of unsubstituted free COOH groups; a being between 0.01 and 0.8; b being between 0.2 and 0.99; a+b=1 The invention also relates to the polymers (I) bearing a photoactive group X of diazirine type and to a composition comprising such a polymer in a physiologically acceptable medium.

Abstract: The invention relates to a polysaccharide polymer of formula (I): PS—(O—CO-L-X)a(OH)b ??(I) in which PS denotes the basic backbone of the polysaccharide bearing the hydroxyl groups; L is a divalent hydrocarbon-based group comprising from 1 to 20 carbon atoms; X denotes a photoactive group of azide or diazirine type; a denotes the content of OH groups substituted with the photoactive group; b denotes the content of unsubstituted free OH groups; a being between 0.02 and 0.5; b being between 0.5 and 0.98; and a+b=1. The invention also relates to a composition comprising the polymer (I) in a physiologically acceptable medium, and also to a cosmetic process for caring for the skin, comprising the topical application to the skin of said composition and exposure of the treated skin to light radiation.

Abstract: The subject of the present invention is a compound of formula (I) below, the addition salts thereof, the dimer thereof and also the organic or inorganic acid salts thereof, the optical isomers thereof, the geometric isomers thereof, and the solvates thereof such as hydrates: (I) These compounds are sensitive to pH and of use for the treatment of keratin fibers, such as human keratin fibers and in particular the hair.

Abstract: The invention relates to a process for dyeing and/or lightening keratin fibers using i) particular dye(s) and/or pigment(s), ii) photoactive compound(s) and iii) light source(s); a cosmetic composition comprising the ingredients i) and ii); the use of ii) for improving the fastness and/or dyeing and/or lightening of keratin materials in the presence of the ingredients i) and iii) of light source(s), and a multi-compartment device comprising i), ii) and iii). The implementation process and the use i) of particular dye(s) and/or pigment(s) combined with ii) the photoactive compounds and iii) with a light source make it possible especially to obtain lasting coloration on keratin fibers without the use of a reducing agent, and without odor.

Abstract: New, highly effective and long-lasting algaecidal compositions of aqueous solutions of one or more organic acids and a source of metal ions.

Abstract: The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising: (i) a step consisting in applying to the skin a composition, in particular a cosmetic composition, comprising, in a physiologically acceptable medium, a polysaccharide polymer grafted with (meth)acrylate groups and a photoactive compound, (ii) followed by a step consisting in exposing the skin to light radiation, preferably for at least 5 seconds. The invention also relates to a composition comprising, in a physiologically acceptable medium, a polysaccharide polymer grafted with (meth)acrylate groups and a photoactive compound.

Abstract: The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising: either the topical application to the skin of an extemporaneous mixture of a cosmetic composition comprising a hyaluronic acid polymer grafted with (meth)acrylate groups and an amine compound; or the sequential application to the skin of a cosmetic composition comprising a hyaluronic acid polymer grafted with (meth)acrylate groups and of an amine compound having one or more primary amine and/or secondary amine groups. The invention also relates to the use of said grafted hyaluronic acid polymer and of said amine compound as a skin tensioning agent. The invention also relates to a cosmetic composition obtained by mixing a cosmetic composition comprising said grafted hyaluronic acid polymer and said amine compound.

Abstract: The invention relates to a method for preventing and/or treating skin disorders related to Propionibacterium acnes, comprising a step consisting in applying, to acneic skin, a dermatological composition comprising, in a physiologically acceptable medium, at least one anionic surfactant in an amount ranging from 0.001% to 0.05% by weight, relative to the total weight of the composition, and a step consisting in applying, to the treated skin, light radiation having a wavelength of between 360 and 450 nm, for at least 3 minutes.

Abstract: The invention relates to capsules of core/shell type, the core comprising an active agent; the shell comprising one or more concentric and alternating layers of a first photosensitive anionic amino polymer and of a second cationic polymer. The invention also relates to a cosmetic or pharmaceutical composition comprising such capsules. The invention also relates to a non-therapeutic cosmetic process for treating keratin materials, comprising the application to the keratin materials of a cosmetic composition comprising the said capsules, followed by exposure of the deposit formed on the keratin materials to natural light or to artificial light with a wavelength of between 360 and 600 nm.

Abstract: The invention thus relates to the cosmetic use of a siliceous material that may be obtained by hydrolysis and condensation, in the presence of water, of at least one tetraalkoxysilane of formula (I) below: Si(OR2)4 (I) and of an alkyltrialkoxysilane of formula (II) below: R1Si(OR2)3 (H) in which: R1 denotes a C7 to C20 alkyl group, optionally interrupted in its chain with an O or S atom or with an NH group or a carbonyl group (CO), R2 denotes a C1-C4 alkyl group. Preferentially, the siliceous material is present in a composition comprising a cosmetically acceptable medium. The invention also relates to a cosmetic process for treating human body odour, in particular underarm odour and optionally human perspiration, which consists in applying to human keratin materials the said siliceous material or a composition containing the same in a cosmetically acceptable medium.

Abstract: The invention thus relates to the cosmetic use of a siliceous material that may be obtained by hydrolysis and condensation, in the presence of water, of at least one tetraalkoxysilane of formula (I) below: Si(OR1)4 (I) and of at least one aminoalkyl-trialkoxysilane of formula (II) below: R2Si(OR3)3 (II) R1 denotes a linear or branched C1-C1 alkyl group; R2 denotes a linear or branched, saturated or unsaturated C1-C6 hydrocarbon-based group, a cyclic C3-C5 hydro-carbon-based group, or denotes a C6-C9 aryl or C6-C9 aryloxy group; the said radicals being substituted with an amino group NH2 or NHR with R denoting a linear or branched C1-C4 alkyl group; R3 denotes a linear or branched C1-C4 alkyl group; the said material being other than a molecularly imprinted polymer.

Abstract: The invention relates to a molecularly imprinted polymer obtained by polymerization of a mixture comprising a basic ethylene monomer having an amine group, a crosslinking agent comprising at least 2 polymerizable ethylene unsaturations, a porogenic solvent and a C14-C20 fatty acid. A cosmetic composition comprising such a polymer. A cosmetic process to prevent and/or treat dandruff of the scalp using such a polymer.

Abstract: The invention relates to the use of molecularly imprinted polymer(s) or MIPs, of odorous molecule(s), as deodorant agent in particular for selectively trapping molecules that are the cause of human body odour. More particularly by using MIPs which may be obtained via polymerization of “sol-gel” type; it being understood that the polymerization is performed in the presence v) of one or more “templates” of target molecule(s) responsible for human body odour. Another subject of the invention concerns a NI process for preparing MIPs as defined previously, MIPs obtained via this process, and a cosmetic composition comprising at least one MIP as defined previously. Unexpectedly, it appears that the MIPs make it possible to specifically trap precursors of odorous molecules and odorous molecules that may be used in cosmetic formulations, especially those that are the cause of the unpleasant odour of sweat.

Abstract: A subject matter of the invention is a molecularly imprinted polymer obtained by polymerization of a mixture comprising a silane, a tetra(C1-C4)alkyl orthosilicate, a porogenic solvent and a C14-C20 fatty acid. Cosmetic composition comprising such a polymer. Cosmetic method for preventing and/or treating dandruff of the scalp using such a polymer.

Abstract: The invention relates to the use of molecularly imprinted polymer(s) or MIPs, of odorous molecule(s), as deodorant agent in particular for selectively trapping molecules that are the cause of human body odour. More particularly by using MIPs which may be obtained via polymerization, preferably via radical polymerization, of a mixture of: i) optionally one or more polymerization initiator(s); ii) one or more functional monomer(s); iii) one or more crosslinking agent(s); and iv) one or more porogenic solvent(s); it being understood that the polymerization a) or b) is performed in the presence v) of one or more “templates” of target molecule(s) responsible for human body odour. Another subject of the invention concerns a process for preparing MIPs as defined previously, MIPs obtained via this process, and a cosmetic composition comprising at least one MIP as defined previously.

Abstract: The invention relates to a process for dyeing and/or lightening keratin fibres using i) particular dye(s) and/or pigment(s), ii) photoactive compound(s) and iii) light source(s); a cosmetic composition comprising the ingredients i) and ii); the use of ii) for improving the fastness and/or dyeing and/or lightening of keratin materials in the presence of the ingredients i) and iii) of light source(s), and a multi-compartment device comprising i), ii) and iii). The implementation process and the use i) of particular dye(s) and/or pigment(s) combined with ii) the photoactive compounds and iii) with a light source make it possible especially to obtain lasting coloration on keratin fibres without the use of a reducing agent, and without odour.