| 主权项 |
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 to form pre-alkalized hair; (b) optionally, rinsing the hair; (c) optionally shampooing and rinsing the hair; (d) applying a color-altering composition onto the pre-alkalized hair, wherein the color-altering composition comprises, in a cosmetically acceptable carrier:
(i) at least one direct dye; and(ii) optionally at least one oxidative dye precursor;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. |
