A dye for hair coloration that has a long shelf life and is excellent in heat resistance, and a method for producing the dye for hair coloration, are provided. A dye for hair coloration represented by the following general formula (1), the dye for hair coloration having a proportion of a polyatomic anion (An) or impurities derived from An of 1% by mass or less:

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wherein in the formula (1), D represents a cationic moiety of the dye for hair coloration; An represents a polyatomic anion; and a and b each independently represent a value of 0 to 1.

The present invention relates to a method of coloring keratin fibers, especially human hair, which delivers intensive, long lasting, brilliant colors and provides improved grey coverage. Kit therefore is disclosed as well. The method of colouring hair involves treating hair prior to colouring with an alkaline reducing agent.

According to the present invention there is provided a cosmetic composition comprising a cosmetically acceptable carrier and a preservative system, wherein the preservative system comprises: (i) an antimicrobial agent; (ii) a chelating agent comprising ethylenediamine tetraacetic acid (EDTA) or a derivative thereof; and (iii) an antimicrobial booster agent selected from the group consisting of ethylhexylglycerin, caprylyl glycol, hydroxy acetophenone, caprylhydroxamic acid, phenethyl alcohol, p-anisic acid, glyceryl caprylate, levulinic acid, sodium levulinate, propanediol, hexanediol, pentylene glycol, capryloyl glycine, methylpropanediol, phenylpropanol, sodium anisate, and combinations thereof, wherein the antimicrobial agent is present in an amount of from about 0.001% to about 1% by weight of the composition.

The present invention addresses the problem of providing an -gel formation composition and an -gel composition that uses the -gel formation composition, wherein said compositions are highly stable, do not deposit crystals, become more viscous over time, and, when used in a preparations for external use, are refreshing during application and have high skin-moisturizing action after application. A gel composition that includes a polyoxyethylene dialkyl ester and/or a polyoxyethylene dialkyl ether, a polyoxyethylene alkyl ester and/or a polyoxyethylene alkyl ether, and, preferably, a polyoxyethylene sterol ether and water.

Provided are largely aqueous topical antimicrobial cleaning composition which provides an antimicrobial benefit, as well as methods for their production and methods for their use. The compositions comprise at least two different cationic surfactants which provide a primary antimicrobial benefit, and as a predominant further surfactant an amine oxide surfactant. The composition are at an acidic pH and are highly effective in providing an antimicrobial benefit to topical surfaces, e.g, epidermis and hair.

Provided are a pigment dispersion liquid for cosmetics having excellent dispersibility for a pigment of Pigment Red 4 (C.I. 12085) and aging stability, and an aqueous liquid cosmetic using the same, which is suitable for hair dyes and the like. The pigment dispersion liquid for cosmetics contains, at least, water, a water-soluble organic solvent, a pigment of Pigment Red 4 (C.I. 12085), and a (methacryloyl ethylbetaine/acrylates) copolymer, and a ratio of the water to total solvents is 30 to 95% by mass.

The present invention provides a method which achieves a simultaneous coulouring and straightening of the hair in a single step, utilizing a hair treatment composition comprising at least one carboxylic acid of formula (I) defined below and at least one direct dye:
RCOCOOHFormula (I) In another aspect, the invention is directed to the hair treatment composition and the use thereof for straightening and colouring the hair.

The present invention relates to substituted stilbenes and dienones which exhibit unexpected dual activity, as inhibitors of NFB and as agonists (activators) of Nrf2. In particular, these compounds show dual activity and it has been discovered that these compounds are particularly useful in the treatment of certain cosmetic applications and in rejuvenating and beautifying skin and other keratinous tissue of a subject in need. Cosmetic compositions and methods of using said compositions in combination with other components are disclosed herein.

The is provided a compound of formula I or II or physiologically acceptable salts or solvates, or oxidised derivatives thereof:

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where R.sup.1 to R.sup.3, R.sup.13 and R.sup.14 are as defined herein. Also disclosed herein are methods of dyeing hair or (temporarily) tattooing the skin using the compounds of formula I or II (or physiologically acceptable salts or solvates, or oxidised derivatives thereof) in a suitable composition.

The present disclosure relates to methods for coloring hair. The methods include applying an aqueous coloring composition and heat to the hair. The coloring composition includes water and one or more colorants for coloring the hair. After application of the aqueous coloring composition to the hair, the hair having the coloring composition applied thereon is heated to a temperature of about 100 C. to about 200 C. for a period of time, for example, for about 5 seconds to about 5 minutes. The methods are quick, efficient, and effective.