Abstract: The invention provides a hair treatment composition such as a shampoo or conditioner suitable for topical application to hair for the repair and prevention of damage comprising a hydroxy compound having the following parameters: i) electrotopological state indice of OH S_sOH<9.26 (ii) multigraph information content indice BIC>0.8 (iii) electrotopological state indice of CH3 S_sCH3<6.26 and (iv) a molecular weight greater than 90 wherein the composition does not dye the hair. Preferred hydroxy compounds are 2-methyl-2-hexanol, 2-methyl-2-heptanol, 2-methyl-3-heptanol, 2-methyl-2-pentanol, 2-methyl-3-hexanol, 3-methyl-2-pentanol, 2-methyl-1-pentanol.

Abstract: The invention provides a hair treatment composition such as a shampoo or conditioner suitable for topical application to hair for the repair and prevention of damage, comprising a molecule having the following formula (I) in which R1, R2 and R3 are independently selected from a methyl, ethyl, propyl group or mixtures thereof; X is a substituted or un-substituted alkyl or alkenyl chain and Y is an amine or hydroxy group.

Abstract: The invention provides a hair treatment composition such as a shampoo or conditioner suitable for topical application to hair for the repair and prevention of damage, comprising (i) cholesterol, and (ii) a hair benefit agent which is a mixture of a basic amino acid and a fatty acid. Preferably the cholesterol and hair benefit agent are compounded into a dispersion of multilamellar vesicles, stabilised with nonionic surfactant.

Abstract: The invention provides a hair treatment composition such as a shampoo or conditioner suitable for topical application to hair for the repair and prevention of damage, comprising (i) cholesterol, and (ii) a hair benefit agent which is a mixture of a basic amino acid and a fatty acid. Preferably the cholesterol and hair benefit agent are compounded into a dispersion of multilamellar vesicles, stabilized with nonionic surfactant.