Provided are a dyeing composition which contains an azo coloring agent represented by Formula 1 or 2, a dyed product which is obtained by being dyed with the dyeing composition, and a novel azo coloring agent. In Formulae 1 and 2, C.sup.1 represents a heteroaromatic group, A.sup.1 and B.sup.1 each independently represent a heteroaromatic group, an aromatic group, or a group having a methine structure, and at least one of A.sup.1 or B.sup.1 represents a heteroaromatic group, D.sup.1 represents an anthraquinonyl group, and E.sup.1 represents a heteroaromatic group, an aromatic group, or a group having a methine structure.

A.sup.1-NNC.sup.1NNB.sup.1Formula 1

D.sup.1-NN-E.sup.1Formula 2

Product for the oxidative dyeing of keratinous fibers, contained in a cosmetic carrier (A) at least one developer selected from the group of p-toluenediamine, 2-(2-hydroxyethyl)-p-phenylenediamine, N,N-bis-(2-hydroxyethyl)-p-phenylenediamine, 2-methoxymethyl-p-phenylenediamine, p-aminophenol, 4-amino-3-methyl phenol, bis-(2-hydroxy-5-aminophenyl)-methane, 4,5-diamino-1-(2-hydroxyethyl)pyrazole and their physiologically compatible salts, and (B) at least one coupler selected from the group of 1,5-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1-naphthol, 1,7-dihydroxynaphthalene, 2,6-dihydroxy-3,4-dimethylpyridine, 2-amino-3-hydroxypyridine, 3-amino-2-methylamino-6-methoxypyridine, 3-aminophenol, 5-amino-2-methyl phenol, 3-amino-2-chloro-6-methyl phenol, 5-(2-hydroxyethyl)-amino-2-methyl phenol, 3-phenylenediamine, 2-(2,4-diaminophenoxy)ethanol, 1,3-bis(2,4-diaminophenoxy)propane, 1-methoxy-2-amino-4-(2-hydroxyethyl)amino)benzene, 2,6-bis(2-hydroxyethylamino)-1-methylbenzene, resorcinol, 2-methylresorcinol, 4-chlororesorcinol and their physiologically compatible salts, and (C) 2-dimethylamino-2-methyl-1-propanol.

The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, using one or more particular 2-azo(benz)imidazolium dyes and one or more fluorescent dyes. The present invention also relates to a cosmetic composition comprising the dyes defined above, and also to a multi-compartment device containing said dyes. The present invention also relates to the use of said dyes for dyeing light keratin fibres, especially human keratin fibres such as the hair, in chestnut-brown, dark chestnut-brown, brown, brown with a glint, or even black, without using an additional dye other than those defined above.

The present invention is directed to a hair care composition having an effective amount of a 2-pyridinol-N-oxide material and an effective amount of an iron chelator; wherein the combination of the iron chelator and the 2-pyridinol-N-oxide material provides high anti-fungal efficacy.

Provided is a tooth whitening system, including at least one whitening agent disposed in a first storage chamber, and least one bleach activator disposed in a second storage chamber. t,?

The instant disclosure relates to methods and kits for artificially coloring hair and improving the durability of the artificially colored hair. The methods include: (I) combining an antioxidant booster composition, a hair coloring base composition, and a developer composition to form an antioxidant-enriched hair coloring composition within 2 hours of application to the hair; (II) applying the antioxidant enriched hair coloring composition to the hair and allowing the antioxidant enriched hair coloring composition to remain on the hair for a period of time; and (III) rinsing the antioxidant enriched hair coloring composition from the hair. The antioxidant booster composition can be included in a kit with a hair coloring base composition and/or a developer composition, wherein the antioxidant booster composition, the coloring base composition, and the developer composition are separately contained.

Systems and methods for keeping various compounds stable in different ampoules in an applicator. Upon breaking open the ampoules, the compounds are mixed and applied. In one embodiment, the resulting mixture is a long lasting waterproof sunscreen for use on skin. In another embodiment, the resulting mixture applied one or more coatings to an article and may subsequently accomplish sustained release and/or transdermal delivery of a therapeutic.

A liquid hair dye composition comprising components (A) and (B), wherein the content (X) of the component (A) in the composition is 1.5 mass % or more and 6.5 mass % or less, the content (Y) of the component (B) in the composition is 9 mass % or more and 98.5 mass % or less, and the composition satisfies the following equation (1):

Y(91/6)X(91/3)(1); with a proviso that a composition in which the diol content is 50 mass % or more and the water content is 2 mass or less in the liquid hair dye composition is excluded. (A) an azo dye of formula (A-3) (B) a monoalcohol and/or a diol other than alkanolamines

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Dye composition comprising 12-hydroxystearic acid, an organic amine and a dye The invention relates to a dye composition comprising 12-hydroxystearic acid, one or more organic amines and one or more dyes chosen from oxidation dyes and direct dyes. The invention also relates to a dyeing process using said dye composition.

The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, using one or more particular triarylmethane dyes and one or more fluorescent dyes.

The present invention also relates to a cosmetic composition comprising the dyes defined above, and also to a multi-compartment device containing said dyes.

The present invention also relates to the use of said dyes for dyeing light keratin fibres, especially human keratin fibres such as the hair, in chestnut-brown, dark chestnut-brown, brown, brown with a glint, or even black, without using an additional dye other than those defined above.