The preparation for permanently deforming hair has a pH of 6.5 to 9.5 and contains, as keratin-reducing agent, a 2-mercaptopropion-amide of the formula (I): ##STR00001## in which R.sub.1 and R.sub.2, independently of one another, represent H, a linear or branched alkylaminoalkyl group with 2 to 8 carbon atoms, or a morpholinoalkyl group with 2 to 3 carbon atoms in the alkyl portion of the morpholinoalkyl group, with the proviso that R.sub.1 and R.sub.2 are not simultaneously H, or that R.sub.1 a...

A reshapable hair styling composition comprising, in a cosmetic vehicle appropriate for hair, at least one dispersion comprising at least one polyurethane in a water and/or solvent medium, said at least one polyurethane being obtained by reacting: (a) an isocyanate terminated polyurethane prepolymer being obtained by reacting: (i) at least one polyactive hydrogen compound insoluble in the medium of the dispersion, wherein said polyactive hydrogen compound is chosen from alkyl, aryl, and aralkyl ...

A composition for lanthionizing keratin fibers comprising at least one hydroxide compound, with the proviso that said at least one hydroxide compound is not sodium hydroxide, lithium hydroxide or potassium hydroxide; and at least one activating agent chosen from cysteine-based compounds; and methods and kits for use thereof.

A method for lanthionizing keratin fibers to achieve relaxation of said keratin fibers and multicomponent kits for lanthionizing keratin fibers to achieve relaxation of the keratin fibers are also provided.

A single formula, mild permanent wave reducing composition and method of permanently waving or reshaping human hair that provides a strong, long lasting curl and leaves the hair soft while minimizing further damage to already damaged hair. The composition contains a cysteamine reducing agent compound selected from the group consisting of cysteamine, a cysteamine salt, and mixtures thereof. The cysteamine compound should be present in an amount of at least about 7.8% by weight and preferably in t...

A permanent waving composition for human hair without any skin sensitizing effect comprises as reducing agent 1,3-propanediol monothioglycollate and 1,3-propanediol dithioglycollate alone or in admixture with other reducing agents, wherein the content of 1,3-propanediol dithioglycollate is not more than 10%, preferably less than 5% by wt., calculated to the monoester.

A mild permanent wave reducing agent-containing composition and method of permanently waving or straightening human hair that provides a strong, long lasting curl, or long lasting straight hair formation, while minimizing hair damage. The composition includes two ionic compounds, one cationic and the other anionic, that complex in solution over a molar ratio of cationic compound to anionic compound in the range of about 1:1.2 to about 1.2:1, preferably in the range of about 1:1.1 to about 1.1:1,...

Compositions and methods for reducing post perm odors, via reaction with hair aldehydes, by contacting the hair with a polyhydric phenol, particularly resorcinol or its derivatives, before, during, or after application of a reducing agent-containing waving lotion. The polyhydric phenol should have the following formula (I): ##STR1## wherein R'=H or OH, R=H or C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alcohol, C.sub.1 -C.sub.12 aldehyde, or a ketone having formula (II) ##STR2## wherein n=0-12, R...

A hair styling and conditioning composition, for use in heat styling hair, and which are dual-phased until shaken, and wherein said composition comprises: (a) a hydroalcoholic phase comprising at least one hair fixative; an emulsifier; a salt; and (b) an anhydrous phase comprising at least one volatile silicone or volatile hydrocarbon, are described. A method for heat styling hair so as to obtain both styling and conditioning benefits, which comprises applying a composition of the invention to h...

This invention describes a hair relaxer system and method that ameliorates and inhibits the adsorption and retention by alkaline, chemically-relaxed hair of exogenous multivalent metal ion present in the chemical relaxer, in the rinse water or both employed during the process of relaxing naturally curly hair with compositions containing strong chemical base. In a preferred relaxer method aspect, the alkaline, chemically relaxed hair was contacted with an aqueous metal ion chelating composition c...