Patent ID: 8017138

Claim:
A method for treating skin, comprising the sequential steps of: a) applying to the skin a first dermatological liquid composition comprising an effective amount of a skin renewal stimulating acid, about 0.1% to about 10% by weight of at least one surfactant/emulsifying agent and a cosmetically acceptable vehicle, wherein the pH of the first dermatological liquid composition is between about 2.5 and about 4; and thereafter b) neutralizing the first dermatological liquid composition by applying to the skin a second dermatological liquid composition comprising an alkaline agent suitable for use in a skin care composition, about 0.1% to about 10% by weight of at least one surfactant/emulsifying agent and a cosmetically acceptable vehicle, wherein the pH of the second dermatological liquid composition ranges from greater than about 7 to about 12.