Patent ID: 7226585

Claim:
A method for increasing the manageability of hair having a baseline pH of around 4.0 to 6.0, the method comprising the steps of: applying an alkaline composition selected from the group consisting of guanidine hydroxide, barium hydroxide, lithium hydroxide, sodium hydroxide, and potassium hydroxide to the hair such that the pH of the hair is elevated above the baseline pH of 4.0 to 6.0; heating the hair while the alkaline composition is applied to the hair, the alkaline composition having a pH of at least 12; shampooing and rinsing the alkaline composition from the hair; allowing the pH of the hair to return towards the baseline pH of around 4.0 to 6.0 by waiting at least 30 minutes between the rinsing of the hair and the application of an acidic composition to the hair; applying the acidic composition to the hair such that the pH of the hair is reduced below the baseline pH of 4.0 to 6.0, the acidic composition including an acid component and a surfactant; and rinsing the hair, the resultant hair having increased manageability.