Abstract: Topically applicable cosmetic compositions useful for the UV-A photoprotection of the skin and/or hair contain thus effective amounts of at least one silane, siloxane or polysiloxane merocyanine sulfone having at least one of the structural formulae (1), (2) and (3) below:

Abstract: Peptides have been identified that bind with high affinity to dyed hair. Peptide-based hair reagents formed by coupling a dyed-hair-binding peptide to a benefit agent are described. The peptide-based hair reagents include peptide-based hair conditioners and hair colorants. The peptide-based hair conditioners and hair colorants are comprised of a dyed-hair-binding peptide coupled to a hair conditioning agent or a coloring agent, respectively. The peptide-based hair reagents or the dyed-hair-binding peptides may also be used as a protective sealant to improve color retention of dyed hair.

Abstract: A peptide, with the sequence (AA)n-Arg-Gly-Ser-(AA)n, where (AA) is any amino acid or a derivative thereof and n=0 to 3, as an active ingredient in or for the preparation of a cosmetic and/or dermatological and/or pharmaceutical preparation. The invention also relates to the use thereof for the treatment, amongst others, of the effects of cutaneous aging and/or the use thereof against cellulite, to a composition comprising the same and to a cosmetic method for the treatment of the skin using said peptide or the composition.

Abstract: Described are merocyanine derivatives of formula (1a) or (1b) wherein n and o are integers from 2 to 4 and aminocyclohexenone intermediates. They are used in protecting human and animal hair and skin from UV radiation.

Abstract: The present invention relates to a conditioning and shine enhancing composition for keratin fibres especially human hair. Accordingly the subject of the present invention is an aqueous composition comprising at least one mono alkyl quaternary ammonium surfactant at a concentration of 0.01 to 10% by weight, and at least one arylated silicone at a concentration of 0.001 to 5% by weight, calculated to total composition.

Abstract: The present invention is related to a conditioning composition for hair comprising at least one arylated silicone and at least one silicone quaternary compound. The conditioning composition of the present invention can be in the form of a shampoo, cleansing-conditioning composition, or in the form of a conditioner used after washing hair with cleansing compositions. It has surprisingly been found out that a composition comprising at least one arylated silicone and at least one silicone quaternary compound gives hair its natural excellent shine, volume and body, elasticity and it is easily manageable.

Abstract: Present invention is related to a composition for conditioning hair comprising two or more optically separated phases when standing at zero shear rate which becomes homogeneous upon shaking. The object of the present invention is a composition for hair comprising 5 to 50%, by weight oil phase, calculated to total composition, and 50 to 95%, by weight, aqueous phase, calculated to total composition, wherein oil phase comprises at least one compound selected from compounds according to general formula wherein R1 is a phenyl and R2 is H or a C1 to C4 alkyl and n is a number between 1 and 5 and compounds of dipropylene glycol dibenzoate and trimethylpentanediyl dibenzoate. Further object of the invention is the use of the composition for conditioning hair.

Abstract: The present invention is related to a conditioning composition for hair comprising at least one polyphenol and at least one silicone quaternary compound. The conditioning composition of the present invention can be in the form of a shampoo, cleansing—conditioning composition, or in the form of a conditioner used after washing hair with cleansing compositions. It has surprisingly been found out that a composition comprising at least one polyphenol and at least one silicone quaternary compound protects hair from environmental influences and hair treated with such a composition looks attractive and has its natural excellent shine, volume and body, elasticity and it is easily manageable. Accordingly the first object of the present invention is a conditioning composition for hair comprising at least one polyphenol and at least one silicone quaternary compound.

Abstract: The present invention is related to a conditioning composition for hair based on polyphenols, Ubichinone and UV filters. The conditioning composition of the present invention can be in the form of a shampoo, cleansing-conditioning composition, or in the form of a conditioner used after washing hair with cleansing compositions. It has surprisingly been found out that a composition comprising at least one polyphenol, at least one UV filter and at least one ubichinone protects hair from environmental influences and hair treated with such a composition looks attractive and has its natural excellent shine, volume and body, elasticity and it is easily manageable.

Abstract: The inventors of the present invention have surprisingly found out that mixing an additional component prior to application which is preferably an emulsion to already existing two or more phase composition comprising an oil phase and a water phase wherein two or more phases are optically separated at zero shear rate and becomes homogeneous upon shaking and returns again to optically separated two or more phases upon release of agitation and mixes to a homogeneous composition when all phases are mixed improves hair shine, elasticity, manageability and combability and adds volume and body when especially a compound described below is included into the composition. It should be noted that after mixing all phase the composition is used immediately or in a short period of time so that the formed composition by mixing all phases does not have to have long term stability. It is enough when it is homogeneous during application onto hair.

Abstract: The present invention provides compounds having the formula: in which R is hydrogen, hydroxy, halogen, C1-C20-alkyl, C4-C12cycloalkyl, C2-C20alkenyl, C2-C20alkynyl, C1-C20-alkoxy, C4-C12cycloalkoxy, C2-C20alkenoxy, C2-C20alkynoxy or C7-C13aralkyl; R1 and R2, independently, are hydrogen, C1-C20alkyl, C4-C12cycloalkyl, C7-C13 aralkyl, —C(?O)—R4 (in which R4 is C1-C20alkyl, C2-C20alkyl interrupted by 1 to 6 oxygen atoms, hetero-substituted C1-C20alkyl, C4-C12cycloalkyl, C2-C20alkenyl, C2-C20alkynyl, C1-C20-alkoxy, C4-C12cycloalkoxy, C2-C20alkenoxy, C2-C20alkynoxy, C6-C12 aryl, C6-C12 aryloxy or C7-C13 aralkyl), or —C(?O)—NH—R1 in which R1 has its previous significance; and R3 is hydrogen, halogen, hydroxy, C1-C20alkyl, C4-C12cycloalkyl, C2-C20alkenyl, C2-C20alkynyl, C1-C20-alkoxy, C4-C12cycloalkoxy, C2-C20alkenoxy, C2-C20alkynoxy, phenyl, C7-C13 aralkyl or —N(R1)(R2) in which R1 and R2 have their previous significance, or R1 and R2 together form a C4-C12 membered ring.

Abstract: Photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane sunscreen compound and at least one photostabilizing siloxane-containing arylalkyl amide compound of formula (I) below:

Abstract: The invention relates to the use of 5,6-diphenyl-1,2,4-triazinic compounds of general formula (I), wherein cycle penetrating bonds display an ortho, meta or para indifferent substitution position, identical or different R1 and R2 represent a hydrogen, fluoride, chloride or bromine atom, C1 to C12 linear or branched alkyl, C1 A C18 linear or branched hydroxy, alkoxy poly(ethoxy)-alkoxy with a C1 to C4 alkyl fragment and an ethoxy number ranging from 1 to 4, amino or mono or di-alkylamino with a C1 to C4 alkyl fragment group, R3 represents a chlorine atom, a hydroxy, amino, a phenyl possibly 1 to 3 times substituted by a hydroxy radical situated at least in a para or phenyl position possibly 1 to 3 times substituted in an ortho, meta or para position by a C1 to C12 alkoxy or cyano or alkymino group with a C1 to C7 alkyl fragment in the form of active sun filters or light-protective agents and to cosmetic composition containing said compounds.

Abstract: The present invention relates to facial wash compositions delivering enhanced whitening using sub-micron titanium dioxide, optional modifier and specific deposition systems.

Abstract: The present invention relates to compositions delivering enhanced visual benefits to the skin with specific optical attributes. These are delivered using specific deposition systems (where oil/emollient comprises part of deposition system) and/or by ensuring dispersion of particles.

Abstract: The present invention is related to composition for conditioning keratin fibres especially human hair with reduced bulk density. The inventors of the present invention have found out that a conditioning composition comprising at least one shear thickening polymer and at least one conditioning compound and having reduced bulk density solves the above mentioned problems in an outstanding environmental compatible way. Since the reduced bulk density the composition is perceived light which for example cause no weigh down effect. The reduced bulk density at the same time improves and optimizes spreadability of the composition to the applied sites and therewith optimizes as well the uptake, in other words, the effect of such composition. Accordingly the subject of the present invention is an aqueous conditioning composition for keratin fibres especially human hair comprising at least one shear thinning polymer, at least one conditioning compound, at least one gas and having a bulk density in the range of 0.3 to 0.

Abstract: The invention concerns methods of treating or preventing the effects of irradiation in a human or non-human animal using carotenoid compounds, preferably diadinoxanthin, diatoxanthin and/or fucoxanthin as well as photoprotective compositions and their use to prepare photoprotective or photoprotected products.

Abstract: Topically applicable, water-resistant cosmetic or dermatological compositions well suited for the UV-photoprotection of human skin and/or hair comprising an effective UV— photoprotecting amount of: (a) at least one UV screening agent; (b) at least one select copolymer; and, optionally (c) other cosmetically acceptable ingredients. The present invention also relates to personal care compositions comprising at least one select copolymer and other cosmetically acceptable ingredients.

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: The present invention relates to dermocosmetic compositions comprising a compound comprising the structural element of the formula I where the radical Z has the following meaning: H, C1-C22alkyl group, C6-C10-aryl group, C1-C22-alkoxy group or a C6-C10-O-aryl group substituted by a C1-C22-alkyl or C-C22-alkoxy group, and the radicals R1 to R6, independently of one another, have the following meaning: H, C1-C22-alkyl group, C6-C10-aryl group, O, OH, C1-C22-alkoxy group or a C6-C10-O-aryl group substituted by a C1-C22-alkyl or C1-C22-alkoxy group, it being possible for R5 and R6 to be bridged in such a way that a five- to eight-membered ring is formed and, in the case of a five-membered ring, this ring may be part of an oligomer as a result of covalent bonds at positions 3 and 4. The invention furthermore relates to the use of said compounds in dermocosmetic formulations and the use of the dermocosmetics according to the invention for reducing skin or hair damage caused by free radicals.

Abstract: The use is described of merocyanine derivatives of formula (1), wherein R1 and R2 are each independently of the other hydrogen; C1-C22alkyl; cyclo-C3C8alkyl; or unsubstituted or C1-C5alkyl- or C1-C5alkoxy-substituted C6-C20aryl; orl; or R1 and R2 together with the nitrogen atom linking them form a —(CH2)m— ring which is uninterrupted or, interrupted by —O— or by —NH—; R3 is a cyano group; —COOR5; —CONHR5; —COR5; or —SO2R5; R4 is a cyano group; —COOR6; —CONHR6; —COR6; or —SO2R6; R5 and R6 are each independently of the other C1-C22alkyl; or unsubstituted or C1-C5alkyl substituted C6-C20aryl; or R3 and R4 together or R5 and R6 together form in a 5- to 7-membered, monocyclic, carbocyclic or heterocyclic ring; Z1, and Z2 are each independently of the other a —(CH2)n— group which is uninterrupted or interrupted by —O—, —S—, or by —NR7—, and/or is unsubstituted or substituted by C1-C5alkyl; R7 is (ClC5alkyl; 1 is from 1 to 4; m is from 1 to 7; n is from 1 to 4; when n=2, R1, R5 or R6 is a bivalent alkyl group; or R1

Abstract: Peptide-based hair protectants, formed by coupling at least one hair-binding peptide with at least one sunscreen agent, are described. The hair-binding peptide portion of the peptide-based hair protectant binds to hair with high affinity, thus keeping the sunscreen agent attached to the hair for long lasting protection. Hair care compositions comprising the peptide-based hair protectants are also described.

Abstract: The present disclosure relates to novel block polymers comprising particular silicone monomers and monomers of formula: CH2?C(R1)—COOR2 wherein R1 is chosen from a hydrogen atom and a methyl group and R2 is chosen from C4 to C12 cycloalkyl groups. The present disclosure also relates to cosmetic or pharmaceutical compositions comprising these polymers, and also to a cosmetic treatment method using them.

Abstract: The present invention relates to aerosol foam composition for styling and conditioning keratin fibres especially human hair. The composition improves hair styling with excellent hold and especially conditions hair with excellent shine, combability, volume and body and also excellent elasticity. The inventors of the present invention have found out surprisingly that an aqueous composition based on at least one hair styling polymer selected from anionic, non-ionic, cationic and/or amphoteric or zwitterionic ones which additionally comprises at least one oil or oily compound, at least one fatty acid soap, at least one emulsifier and at least one propellant shows excellent styling and conditioning benefits and has an appearance like a whipped cream which has not been know in cosmetic market prior to present invention.

Abstract: The present invention is related to a hair styling composition for keratin fibres especially for hair. The object of the present invention is an aerosol composition for keratin fibres especially for hair based on an aqueous, aqueous-alcoholic or alcoholic medium comprising at least one natural starch and at least one propellant. Compositions according to present invention can furthermore comprise at least one film forming polymer, one or more surfactant, UV filter and direct hair dye.

Abstract: Conditioning and shine enhancing compositions dramatically and condition hair excellently in terms of combability, elasticity, smoothness and softness for keratin fibres especially human hair are disclosed. Particularly, the compositions disclosed comprise synthetic mica coated with metal oxide or oxides and having a volume particle size distribution of 1 to 750 ?m at a concentration of 0.01 to 10% by weight, calculated to total composition, which gives hair shimmery shine.

Abstract: The invention relates to complexes of certain flavonoid derivatives, of the formula (1), where R1 and R2 are selected from H and OR11, where OR11 stands, independently of one another, for OH, straight-chain or branched C1- to C20-alkoxy groups, straight-chain or branched C3- to C20-alkenyloxy groups, straight-chain or branched C1- to C20-hydroxyalkoxy groups, where the hydroxyl group(s) may be bonded to a primary or secondary carbon atom in the chain and furthermore the alkyl chain may also be interrupted by oxygen, and/or C3- to C10-cycloalkoxy groups and/or C3- to C12-cycloalkenyloxy groups, where the rings may in each case also be bridged by —(CH2)n— groups, where n=1 to 3, and/or mono- and/or oligoglycosyl radicals, with the proviso that at least one radical from R1 and R2 stands for OR11, and R3 to R10 may be identical or different and stand, independently of one another, for radicals which are substantially inert with respect to the UV properties, to compositions which comprise such complexes, to corres

Abstract: The disclosure provides a sunscreen formulation comprising a peptide-based metal oxide sunscreen agent, such as titanium dioxide nanoparticles, and a fluid vehicle.

Abstract: The invention concerns a fatty ester mixture for cosmetic product, comprising at least two fatty esters selected among a branched C4–C8 mono carboxylic acid and a branched C8–C12 alcohol, the esters of a C8–C12 dicarboxylic acid the esters of a linear C8–C12 dicarboxylic acid and a branched C3–C6 alcohol and the esters of a hydroxycarboxylic acid and a linear C10–C18 alcohol. The invention is useful in cosmetics and more particularly for solar protection products.

Abstract: A hair treatment agent composition characteristically comprising a specific hydrophobically modified polyether urethane and cationic surfactant. The hair treatment agent composition of the present invention provides has good temperature stability in terms of the viscosity, exhibits superior fluid flow characteristics, achieves smoothness and ease of arranging the hair after drying, and gives a superior sensation during use. A cleaning agent composition characteristically comprising a specific hydrophobically modified polyether urethane and anionic surfactant and/or ampholytic surfactant. The cleaning agent composition of the present invention has superior viscosity and is superior in terms of foam formation as well as foam durability and feels refreshing without a slimy sensation after rinsing-off.

Abstract: The instant invention relates to novel surfactant-free, multiphase sunscreen compositions that provide protection from the sun, have a unique visual appeal, and provide skin conditioning and moisturization. In a two-phase embodiment of the instant invention, the compositions are comprised of (1) a first layer comprising a high-density ester and sunscreen, and (2) a second aqueous layer, which is usually the top layer. In a three-phase embodiment of the instant invention, the compositions are comprised of (1) a first layer comprising a high-density ester and and sunscreen, (2) a second aqueous layer, and (3) a third oily layer. The high-density ester layer usually has a specific gravity that is greater than that of the aqueous layer and the aqueous layer usually has a specific gravity that is greater than the oily layer. In preferred embodiments, each phase is substantially clear and has a volume approximately equal to that of the other phase(s).

Abstract: The use of benzotriazole UV absorbers of formula wherein A is a radical of formula B is a radical of formula R1, R2, R3, R4, R5 and R6 are each independently of the others hydrogen, C1–C16alkyl; C5–C7cycloalkyl; halogen; R9 is hydrogen, C1–C12alkyl; or C5–C7cycloalkyl; R7, R8 and R10 are each independently of the others hydrogen, C1–C12alkyl, C5–C7cycloalkyl, C1–C12hydroxyalkyl; X is halogen; a radical of formula sulfate, phosphate, lactate, citrate, tartrate; R11 is C1–C12alkyl; or C5–C7cycloalkyl; R12 and R13 are each independently of the other hydrogen; or C1–C5alkyl; x is from 0 to 10; and y is from 1 to 20; in the cosmetic treatment of human hair for protection against UV radiation is described.

Abstract: The invention relates to the use of quinoxaline derivatives of formula I, represented by formulas 1a and 1b, as photostable UV filters, in particular in cosmetic and pharmaceutical preparations for protecting the human epidermis or human hair against UV radiation, above all in the 280–400 nm range.

Abstract: An improved composition and method for protecting both natural and artificial hair color from the harmful effects of ultraviolet radiation is provided. The composition includes melanin, an ultraviolet absorber, and a cationic surfactant. The composition may also include other ingredients such as additional cationic surfactants, hair conditioning agents, dispersing agents, rheology modifiers, emulsifiers, antioxidants, film formers, and water. A method of protecting hair color from ultraviolet radiation includes applying the composition to natural or artificial hair.

Abstract: The invention relates to a reducing composition for the permanent deformation of the hair comprising an N-substituted formamidinesulphinic acid derivative as reducing agent and to a process for the permanent deformation of the hair employing this reducing composition.

Abstract: The use of benzotriazole UV absorbers of formula (1), wherein A is a radical of formula (1a); (1b); or (1c); B is a radical of formula (1d); (1e); (1f), (1g); (1h); (1i); (1k); (1l); (1m); or (1n); R1, R2, R3, R4, R5 and R6 are each independently of the others hydrogen, C1–C16alkyl; C5–C7cycloalkyl; halogen; R9 is hydrogen, C1–C12alkyl; or C5–C7cycloalkyl; R7, R8 and R10 are each independently of the others hydrogen, C1–C12alkyl C5–C7cycloalky, C1–C12hydroxyalkyl; X is halogen; a radical of formula (1s); (1t); or (1u); sulfate, phosphate, lactate, citrate, tartrate; R11 is C1–C12alkyl; or C5–C7cycloalkyl; R12 and R13 are each independently of the other hydrogen; or C1–C5alkyl; x is from 0 to 10; and y is from 1 to 20; in the cosmetic treatment of human hair for protection against UV radiation is described.

Abstract: There are described triazine derivatives of formula (1), wherein R1 is an unsubstituted or mono- or poly-hydroxy-, C1-C18 alkyl-, C1-C18 alkoxy-, amino-, C1-C5 monoalkylamino- or di-C1-C5 alkylamino-substituted C1-C18 alkyl, C2-C18 alkenyl, C6-C10 aryl or C6-C10 heteroaryl radical; unsubstituted or C1-C5 alkyl-substituted C5-C7 cycloalkyl or C5-C7 cycloalkenyl; —OR?; or —NR?R?; R2 is hydrogen; an unsubstituted or mono- or poly-hydroxy-, C1-C18 alkoxy-, cyano-, amino, C1-C5 monoalkylamino- or di-C1-C5 alkylamino-substituted C1-C18 alkyl, C2-C18 alkenyl; C6-C10 aryl or C6-C10 heteroaryl radical; —OR?; or —NR?R?; or R1 and R2 together form a 5- to 7-membered carbocyclic or heterocyclic ring; A is C1-C5 alkyl; an unsubstituted or hydroxy-, C1-C18 alkyl- or C1-C18 alkoxy-substituted C6-C10 aryl or heteroaryl radical; or a radical of formula (1a); R? and R? are each independently of the other hydrogen; unsubstituted or mono- or poly-hydroxy-, halo-, C1-C18 alkyl-, C1-C18 alkoxy-, amino- or quaternary ammonium group

Abstract: Cosmetic preparations which contain (a) an ester of a hydroxycarboxylic acid and an alk(en)yl oligoglycoside, and (b) a silicone compound; are described. The esters correspond to the general formula (I): wherein X represents a hydrogen or a —CH2COOR3 substituent, Y represents a hydrogen or a hydroxyl substituent, R1, R2 and R3 each independently represents a substituent selected from the group consisting of hydrogen, alkali metals, alkaline earth metals, ammonium, alkyl ammoniums, hydroxyalkyl ammoniums, glucammonium, and residues of alk(en)yl oligoglycosides; wherein at least one of R1, R2 and R3 represents a residue of an alk(en)yl oligoglycoside, and with the proviso that, where X represents a —CH2COOR3 group, Y is hydrogen.

Abstract: The invention is directed to an aqueous hair care composition comprising a) at least one UV-absorbing substance, and b) at least one mica/titanium dioxide pigment wherein at least 90% by weight of the mica/titanium dioxide pigment comprises a particle size between about 10 and 250 microns, c) green tea extract, and wherein the entire composition has a pH no greater than about 6.

Abstract: Compounds of Formula I: wherein R, R1 and R2 are each independently hydrogen or linear or branched C1 to C10 alkyl, or linear or branched C1 to C10 alkoxy; R3 is selected from the group consisting of COCH3, CO2R7, CONH2, CON(R8)2, CN, COX(CH2)n-N—(R4)(R5)(R6), and the quaternized salt form of the formula COX(CH2)n-N—(R4)(R5)(R6)+Y?; X is O or NH; n is an integer of 1 to 5; Y is an anion; R4, R5 and R6 are independently linear or branched C1 to C30 alkyl; and R7 and R8 are independently hydrogen or linear or branched C1-C30 alkyl. Sunscreen formulations containing compounds of Formula I, and methods for protecting hair, skin and substrates such as polymers, textiles, fabrics, leathers and paints using the compounds herein.

Abstract: A cosmetic comprising (A) a phosphoric triester represented by the general formula (1): wherein R1 and R2 are independently an alkyl group having 1 to 8 carbon atoms, R3 is an alkyl group having 1 to 4 carbon atoms, X, Y and Z are independently an alkylene group having 2 or 3 carbon atoms, l and m are independently a number of 1 to 10, and n is a number of 0 to 10, and (B) a skin activating component.

Abstract: There is provided a cosmetic or topical composition for use on the human body having a phosphate compound in an amount effective to inhibit corrosion of metallic containers containing the composition. Preferably, such a cosmetic or topical composition has sodium hydrogen phosphates and/or sodium polyphosphates in an amount about 0.05 wt % to about 1.5 wt % based on the total weight of the finished composition.

Abstract: A description is given of the use of light stabilizers of formulae (1) and/or (2) for protecting body-care and household products from photolytic degradation.

Abstract: A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of treating substrates with the UV-protective polyaminoamide containing 1,3-diimine groups.

Abstract: A wiping article is provided which includes an effervescent cleanser composition held within a pouch formed from a first and second substrate sheet. At least one of the substrate sheets must be water permeable. The effervescent composition is an intimate mixture of an acid material such as citric acid and an alkaline material such as sodium bicarbonate. Water contact causes the combination to effervesce. A dry surfactant such as sodium cocoyl isethionate in contact with the water and effervescing carbon dioxide results in a highly pleasant sudsing system. Skin benefit agents may be included within the composition. The effervescent action may improve deposition of the skin benefit agents onto the skin.

Abstract: UV-Photoprotective oil-in-water emulsions well suited for photoprotecting the skin, lips and/or hair against the damaging effects of UV-radiation, the oil globules of which having an average size of at most 500 nm and containing particles of at least one ionic polymer and at least one UV-radiation-screening system, such screening system comprising at least one 4,4-diarylbutadiene UV-A-screening agent.

Abstract: A composition containing an emulsifier component having: (a) a hydroxycarboxylic acid alkyl and/or alkenyl oligoglycoside ester; and (b) a fatty alcohol.

Abstract: The invention relates to rinse-off personal care compositions comprising specifically defined particle wherein compositions also contain at least some hydrophobic benefit agent or emollient. The emollient allow particles to deposit and provide enhanced shine.

Abstract: The invention concerns a cosmetic composition comprising, in a cosmetically acceptable medium, at least a film-forming polymer (A) with particular characteristics and at least an additive (B), the latter being selected such that the film formed on the hair after the cosmetic composition has been applied retains its mechanical properties whatever the hygrometric condition. The invention also concerns a hair care or hair styling method using said composition and its use for the formulation of cosmetic products such as lacquers, sprays or foams, for hair care or hair styling.

Abstract: A microcapsule having a mean diameter of from about 0.1 to about 5 mm, a membrane and a matrix containing at least one active principle wherein the microcapsule is the product of the process comprising the steps of (a) forming an aqueous matrix by heating an aqueous solution comprised of a gel former, an anionic polymer selected from the group consisting of a salt of alginic acid and an anionic chitosan derivative and active principle; (b) adding the aqueous matrix to an aqueous solution of chitosan.