Hair Color Smoothing Compositions and Methods

摘要

Compositions, kits, and methods for rebuilding the disulfide bonds in hair that is damaged due to a hair coloring treatment are disclosed. The compositions contain one or more compounds that covalently crosslink at least two thiol groups in the hair. The compositions may be applied subsequent to a hair coloring treatment or simultaneously with a hair coloring treatment. Under normal hair washing conditions, the covalent crosslinks formed are not succeptable to reduction or hydrolysis. Use of the crosslinking compositions prevent the reversion of the hair's disulfide bonds to its reduced state, for at least one week, preferably at least three months, more preferably at least one year, most preferably at least greater than one year, after at least one application of the composition.

主权项

1. A method for coloring hair comprising:
(a) applying a first formulation comprising a hair coloring agent and a reducing agent capable of reducing the disulfide bonds in the hair to produce reduced thiol groups, (b) applying to the hair a second formulation comprising a crosslinking agent in an effective amount to covalently crosslink the reduced thiol groups, wherein the crosslinking agent comprises at least two reactive moieties connected through a linker, capable of reacting with the reduced thiol groups.