Patent ID: 9566221
Date: 2017-02-14
CPC Classifications: A61K,A61Q

Claim:
1. A method of altering the appearance of hair, said method comprising: (a) applying, onto the hair, a pre-alkalizing composition having a pH of from about 8 to about 14, wherein the pre-alkalizing composition changes the shape of the hair, and wherein the pre-alkalizing composition is left on the hair for a time period sufficient to form pre-alkalized hair having an alkaline pH; (b) optionally, rinsing the hair; (c) shampooing the hair and rinsing the shampooed, hair; (d) applying a color-altering composition onto the pre-alkalized hair, wherein the color-altering composition comprises, in a cosmetically acceptable carrier: and wherein the pH of the color-altering composition ranges from about 1 to about 7; (e) leaving the color-altering composition on the hair for a time period sufficient to achieve a desired level of color lift; and (f) optionally, rinsing the hair; wherein the color-altering composition does not comprise a chemical oxidizing agent; and wherein the color-altering composition is applied onto the pre-alkalized hair within about 24 hours after the pre-alkalizing step.