Abstract: The present disclosure relates to compositions for altering the tone or color of the hair, the compositions comprising at least one amino acid, at least one carboxylic acid, monoethanolamine, and at least one hair coloring agent. The disclosure also relates to methods of using the compositions.

Abstract: The disclosure relates to buffer systems having ammonium hydroxide, ammonium bicarbonate, and optionally monoethanolamine, hair color bases, hair color altering compositions, and kits and methods for altering the color of hair. Hair color bases and hair color altering compositions comprise a buffer system having ammonium hydroxide, ammonium bicarbonate, and optionally monoethanolamine.

Abstract: The present disclosure relates to hair treatment compositions comprising at least one amino acid, at least one carboxylic acid, and monoethanolamine. The disclosure also relates to methods of using the hair treatment compositions.

Abstract: The disclosure relates to hair color base compositions comprising an alkoxylated fatty alcohol, a fatty acid, a fatty alcohol, a buffer system, and optionally a thickening agent and/or colorant compound, hair color altering compositions comprising the hair color base, and kits and methods for altering the color of keratinous fibers such as hair.

Abstract: The disclosure relates to hair color base compositions comprising an alkoxylated fatty alcohol, a fatty acid, a fatty alcohol, a buffer system, and optionally a thickening agent and/or colorant compound, hair color altering compositions comprising the hair color base, and kits and methods for altering the color of keratinous fibers such as hair.

Abstract: The present disclosure relates to compositions for altering the tone or color of the hair comprising at least one amino acid, at least one carboxylic acid, monoethanolamine, at least one oxidation base chosen from toluene-2,5-diamine, acid salts thereof, or solvates thereof, and a coupler system comprising one or more couplers chosen from 2,4-diaminophenoxyethanol, meta-aminophenol, derivatives thereof, addition salts thereof, solvates thereof, solvates of salts thereof, or mixtures thereof. The disclosure also relates to methods of using the compositions and kits comprising the compositions.

Abstract: The disclosure relates to buffer systems having ammonium hydroxide, ammonium bicarbonate, and optionally monoethanolamine, hair color bases, hair color altering compositions, and kits and methods for altering the color of hair. Hair color bases and hair color altering compositions comprise a buffer system having ammonium hydroxide, ammonium bicarbonate, and optionally monoethanolamine.

Abstract: The present disclosure relates compositions and methods for altering the color of the hair, the compositions comprising at least one amino acid, at least one carboxylic acid, optionally at least one amine, and at least one hair coloring agent.

Abstract: The present disclosure relates to compositions for altering the tone or color of the hair, the compositions comprising at least one amino acid, at least one carboxylic acid, monoethanolamine, and at least one hair coloring agent. The disclosure also relates to methods of using the compositions.

Abstract: The present disclosure relates to hair treatment compositions comprising at least one amino acid, at least one carboxylic acid, and monoethanolamine. The disclosure also relates to methods of using the hair treatment compositions.