Abstract: A two step method of coloring hair is described. The hair is first contacted for a period of time with a dye precursor mixture containing an oxidative dye, specific fatty components and one or more water miscible organic solvents. Color is then developed in a second step by contacting the hair with one or more oxidizing agents. Greater color intensity and longevity are achieved when the fatty component in the dye precursor mixture contains at least one fatty amine and the fatty ingredients and organic solvents satisfy the relationship, ?FC<0.037(?OS)2?3.35(?OS)+63, where ?FC and ?OS are respectively the total weight of fatty ingredients and the total weight of water miscible organic solvents in the precursor mixture.

Abstract: Cosmetic compositions and methods of decreasing sebum production and/or pore size by contacting skin with a hair growth inhibitor, including polyamine derivatives and/or analogs; DFMO, N-acetyl cysteines; neutralized salts of a non-hydroxy C2-C40 dicarboxylic acids, preferably malonate salts; and mixtures thereof. Additional sebum and/or pore size reducing agents, such as carboxyalkylates of branched alcohols and/or ethoxylates thereof, cerulenin, triclosan, ?-methylene-?-butyrolactone, and EGCG, as well as mixtures thereof and analogs thereof, may be included in the inventive compositions and methods.

Abstract: The present invention relates to a 2-step methods, and compositions for providing more vibrant, natural and long-lasting color to hair and at the same time reducing hair fiber damage associated with alternative current methods. In the first step the hair is contacted for a period of time with a dye precursor mixture containing specific oxidative hair dye precursors under conditions where these dyes are substantially inactive. Color is then developed in a second step by contacting the hair with a mixture of a peroxide compound and a persulfate salt. Surprisingly the 2-step method leads to considerable “lift” or lightening without negatively impacting the coloring ability of the oxidative dye. The invention also relates to kits providing the means to accomplish these steps.

Abstract: A method for electrochemically dyeing, highlighting or tinting hair is provided which includes first applying to the hair an oxidative dye precursor mixture containing a primary intermediate having a standard Redox potential that is less than about 1V. This precursor mixture on the hair in then contacted with an electrode system that has sufficient voltage to electrochemically oxidize the primary intermediate to produce a colored dye through a coupling reaction. A system or kit for carrying out the method is also provided.

Abstract: A sequential method for dyeing hair which comprises: contacting the hair with a substantially inactive dye precursor mixture containing at least one primary intermediate and an optional coupler having at least 50% of the molecules comprising these precursors are in their non-anionic form, for a period of time, followed by contacting the hair with a developer mixture capable of oxidizing the hair dye precursors to react and form hair color molecules.

Abstract: A sequential method for dyeing hair which comprises: contacting the hair with a substantially inactive dye precursor mixture containing at least one primary intermediate and an optional coupler for a period of time, followed by applying a means for aligning the hair and distributing the oxidative dye precursors uniformly, followed by contacting the hair with a developer mixture capable of oxidizing the hair dye precursors to react and form hair color molecules.

Abstract: Gluconolactone or glucarolactone in cosmetic skin care compositions, as anti-irritants, to reduce skin irritation, which may be intrinsic skin irritation or irritation caused by hydroxy acids or certain retinoids.