Patent ID: 6911210

Claim:
A method of treating acne comprising topically applying to acned skin an amount effective to treat said skin of a cosmetic and/or dermatological preparation in the form of an emulsion, said preparation comprising: a) an amount effective to treat said skin of at least one hydroxycarboxylic acid selected from the group consisting of malic acid, lactic acid, citric acid, tartaric acid, salicylic acid, and glycolic acid; b) at least one interface-active substance A selected from the group consisting of glucose derivatives of the formula: where R is a branched or unbranched alkyl radical having from 1 to 24 carbon atoms, where R 1 is either a hydrogen atom or a branched or unbranched alkyl radical having from 1 to 24 carbon atoms, and where R 2 is either a hydrogen atom or a branched or unbranched acyl radical having from 1 to 24 carbon atoms; c) at least one interface-active substance B selected from the group consisting of substances of the formula: where R 3 , R 4 and R 5 independently are selected from the group consisting of a hydrogen atom, and branched or unbranched, saturated or unsaturated fatty acid radicals having from 8 to 24 carbon atoms, in which up to three aliphatic hydrogen atoms can be substituted by hydroxyl groups, and n is a number from 2 to 8.