Disclosed are methods for coloring hair, comprising applying a mixture comprising one or more hair dyes and an additive as a pre-treatment, as a simultaneous treatment, as a post-treatment, or a combination thereof.

A chewable composition for teeth-whitening comprising a first region and a second region separated by a barrier layer; the first region comprising carbamide peroxide having water content of about 2% or less, a wetting agent (e.g., glycerin), an anhydrous chewing gum base having water content of about 1% or less, an anhydrous fruit acid, and one or more gum additives; and the second region comprising a chewable composition comprising a gum base, a source of bicarbonate ion, and one or more gum additives. A kit comprising separate chewable compositions corresponding to the first and second regions, and methods for whitening teeth using the chewable composition are also provided.

A chewable composition for teeth-whitening comprising a first region and a second region separated by a barrier layer; the first region comprising carbamide peroxide having water content of about 2% or less, a wetting agent (e.g., glycerin), an anhydrous chewing gum base having water content of about 1% or less, an anhydrous fruit acid, and one or more gum additives; and the second region comprising a chewable composition comprising a gum base, a source of bicarbonate ion, and one or more gum additives. A kit comprising separate chewable compositions corresponding to the first and second regions, and methods for whitening teeth using the chewable composition are also provided.

A method for strengthening and repairing keratin fibres including providing a first—and a second crosslinking composition, wherein the first—crosslinking composition comprises an at least bi-functional Brønsted-base and the second—crosslinking composition comprises—an at least bi-functional organic acid, and a cosmetically acceptable carrier; applying the first—as well as the second—crosslinking composition to keratin fibres; and optionally mixing the first—crosslinking composition into a commercially available hair coloring or hair bleaching composition.

A method for strengthening and repairing keratin fibres including providing a first—and a second crosslinking composition, wherein the first—crosslinking composition comprises an at least bi-functional Brønsted-base and the second—crosslinking composition comprises—an at least bi-functional organic acid, and a cosmetically acceptable carrier; applying the first—as well as the second—crosslinking composition to keratin fibres; and optionally mixing the first—crosslinking composition into a commercially available hair coloring or hair bleaching composition.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

The present disclosure relates to hair care compositions such as hair treatment compositions and hair lightening compositions, methods for treating hair (e.g., lightening hair), and to kits comprising the compositions. The components of the hair treatment compositions may be included in hair lightening compositions and used to lighten and/or color hair. The hair treatment compositions typically include: (a) one or more polycarboxylic acids, and/or a salt thereof; (b) one or more amino acids, and/or a salt thereof; and optionally (c) one or more cationic conditioning agents. The hair lightening compositions further include (d) one or more bleaching agents.

The present disclosure relates to a solid hair cosmetic composition comprising—based on the total weight of the cosmetic composition—0.1 to 40.0% by weight of at least one polysaccharide, at least one polysaccharide being starch from corn, rice, potato or tapioca; modified starch; hydroxypropyl starch phosphate or a dextrin, and optionally: 10.0 to 60.0% by weight of at least one polyhydric alcohol, 0.1 to 15.0% by weight of at least one cationic surfactant, and 0.1 to 15.0% by weight of at least one saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 alcohol and/or a saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 carboxylic acid and/or a salt of a saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 carboxylic acid, as well as production and application methods and uses thereof.

The present disclosure relates to a solid hair cosmetic composition comprising—based on the total weight of the cosmetic composition—0.1 to 40.0% by weight of at least one polysaccharide, at least one polysaccharide being starch from corn, rice, potato or tapioca; modified starch; hydroxypropyl starch phosphate or a dextrin, and optionally: 10.0 to 60.0% by weight of at least one polyhydric alcohol, 0.1 to 15.0% by weight of at least one cationic surfactant, and 0.1 to 15.0% by weight of at least one saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 alcohol and/or a saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 carboxylic acid and/or a salt of a saturated or unsaturated, branched or unbranched C.sub.8-C.sub.30 carboxylic acid, as well as production and application methods and uses thereof.

This invention relates to oral care compositions comprising arginine or lysine, zinc citrate and zinc oxide, and a fluoride source, as well as to methods of using and of making these compositions.