This invention relates to a hair care composition that contains at least one hair care ingredient and at least one polymeric colorant.

A hair-dyeing composition with an effect of minimizing hair damage and scalp irritation caused by ammonia prescription and ammonia odor, which is capable of decreasing ammonia odor peculiar to a hair-dyeing composition and also of supplementing the hair with amino acids similar to hair proteins to decrease hair damage, especially hair roughness and hair shortening, for healthy dyeing and a method of producing the same.

The present invention relates to a notably cosmetic or dermatological composition comprising: a) at least one merocyanine of formula (1) or (2) and (2) b) at least one oily phase comprising at least one alkyl or alkylene carbonate. The present invention also relates to a non-therapeutic cosmetic process for caring for and/or making up a keratin material, comprising the application, to the surface of said keratin material, of at least one composition as defined hereinabove. The invention also relates to a non-therapeutic cosmetic process for limiting the darkening of the skin and/or improving the colour and/or uniformity of the complexion, comprising the application, to the surface of the keratin material, of at least one composition as defined previously. The invention also relates to a non-therapeutic cosmetic process for preventing and/or treating the signs of ageing of a keratin material, comprising the application, to the surface of the keratin material, of at least one composition as defined previously.

##STR00001##

Cosmetic emulsion containing a gemini surfactant and a lipophilic polymer The invention relates to a composition in the form of an emulsion, in particular in the form of an oil-in-water emulsion, comprising a gemini surfactant having a specific chemical structure with at least two fatty amide groups and at least one lipophilic polymer comprising at least hydroxyethyl acrylate units and acrylate units bearing a lipophilic group, wherein the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing a lipophilic group ranges from 1:30 to 1:1 and wherein the lipophilic polymer has a number-average molecular weight Mn ranging from 2000 to 9000 g/mol. The composition in accordance with the invention makes it possible to obtain a cosmetic emulsion having an increased sun protection factor, while at the same time having good cosmetic properties, such as a non-greasy and non-tacky feel, while at the same time being stable, in particular from the physicochemical viewpoint.

The present invention relates to a hair cosmetic containing the following components (A) to (C): (A) a compound represented by the following general formula (1) or a salt thereof: ##STR00001## wherein a broken line represents the presence or absence of a π bond; R.sup.1 represents a hydroxy group or an acetoxy group; R.sup.2 represents a hydrogen atom or —COOR (R is a hydrogen atom, a methyl group, or an ethyl group); and R.sup.3 represents a hydrogen atom, an acetyl group, a methyl group, or an ethyl group; (B) a cationic surfactant; and (C) a polyoxyethylene addition type nonionic surfactant, wherein a mass ratio of the component (B) to the component (A) [(B)/(A)] is 1.0 or more; a mass ratio of the component (C) to the component (A) [(C)(A)] is 1.0 or more; a mass ratio of t a component having an oxyethylene addition molar number of 5 or more in the components constituting the component (C) to the component (A) is satisfied with a predetermined requirement; and a pH at 25° C. of the hair cosmetic is 8.0 or more and 12.0 or less.

Hair conditioner compositions comprising an ester of an oxalkylated alkylalkylene diamine of formula (I) ##STR00001##
wherein: R denotes C.sub.8-C.sub.24-alkyl or C.sub.8-C.sub.24-alkenyl A denotes a group —C.sub.2H.sub.4— or —C.sub.3H.sub.6 Z.sup.1 denotes a group —C(O)—R′, wherein R′ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.2 denotes a group —C(O)—R″, wherein R″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.3 denotes a group —C(O)—R′″, wherein R′″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.4 denotes a group —C(O)—R″″,
wherein R″″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, a denotes 0 or 1, m denotes 2 or 3, and u, v, w and x are each independently numbers from 1 to 9, or the quaternized salts thereof, and comprising at least one alcohol component, having 6 to 18 carbon atoms, lead to improved conditioning and gloss of the hair.

Hair conditioner compositions comprising an ester of an oxalkylated alkylalkylene diamine of formula (I) ##STR00001##
wherein: R denotes C.sub.8-C.sub.24-alkyl or C.sub.8-C.sub.24-alkenyl A denotes a group —C.sub.2H.sub.4— or —C.sub.3H.sub.6 Z.sup.1 denotes a group —C(O)—R′, wherein R′ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.2 denotes a group —C(O)—R″, wherein R″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.3 denotes a group —C(O)—R′″, wherein R′″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, Z.sup.4 denotes a group —C(O)—R″″,
wherein R″″ denotes C.sub.5-C.sub.35-alkyl or C.sub.5-C.sub.35-alkenyl, a denotes 0 or 1, m denotes 2 or 3, and u, v, w and x are each independently numbers from 1 to 9, or the quaternized salts thereof, and comprising at least one alcohol component, having 6 to 18 carbon atoms, lead to improved conditioning and gloss of the hair.

Compositions, kits, and methods for repairing bonds, for example, disulfide bonds, in hair or on the skin are disclosed. The compositions provide improved conditioning benefit for dry hair or moisturize the skin. The compositions also provide a long lasting moisturized feel and smooth feel to the skin or hair, without feeling greasy. The compositions contain one or more compounds that covalently bind at least two thiol groups in the hair or on the skin. Use of the binding compositions prevents reversion of the repaired bonds to their free thiol state, for at least one week or one month, or more, after a single application of the composition. Improved methods of styling hair, for example permanent hair waving, hair curling, hair coloring or highlighting, and hair straightening, are also provided.

Compositions, kits, and methods for repairing bonds, for example, disulfide bonds, in hair or on the skin are disclosed. The compositions provide improved conditioning benefit for dry hair or moisturize the skin. The compositions also provide a long lasting moisturized feel and smooth feel to the skin or hair, without feeling greasy. The compositions contain one or more compounds that covalently bind at least two thiol groups in the hair or on the skin. Use of the binding compositions prevents reversion of the repaired bonds to their free thiol state, for at least one week or one month, or more, after a single application of the composition. Improved methods of styling hair, for example permanent hair waving, hair curling, hair coloring or highlighting, and hair straightening, are also provided.

Hair care compositions and methods for improving curl retention of hair are provided. The hair car composition may include a carrier and a quaternary ammonium compound. The method for improving curl retention may include contacting the hair care composition with surfaces of the hair of a subject in need thereof.