US 6,433,024 B1Granted

Topical anti-acne composition

OwnerKarl F. Popp, Brent D. Stiefelinventors

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Abstract

The present invention is directed towards a topical composition for the treatment of acne comprising water, an organic peroxide, an alpha hydroxy acid, a moisturizer, an isosorbide and a detergent. This invention also is directed to a method of making the composition of this invention. The method involves (1) heating water to between 60° C. and 70° C.; (2) adding a detergent base to the water and mixing the solution; (3) cooling the solution and adding an alpha hydroxy acid, an isosorbide and sodium pyrollidone carboxylate; (4) continuing to cool the solution to between 25° C. and 35° C. and then adding benzoyl peroxide and a preservative to the solution; (5) mixing and milling the product until smooth; and (6) adjusting the pH of the product to a pH of 3-5 with a base. This invention also is directed towards a method for treating a patient afflicted with acne by applying the composition of this invention to the affected areas of the patient's skin.

Claims20

Dependent claims

A topical composition for the treatment of acne consisting essentially of:

(a) water present in an amount from about 25% by weight to about 60% by weight of the composition;
(b) benzoyl peroxide present in an amount from about 1.0% by weight to about 20.0% by weight of the composition;
(c) an alpha hydroxy acid selected from the group consisting of glycolic acid, lactic acid, 2-hydroxydecanoic acid, malic acid and mixtures thereof and present in an amount from about 0,1% by weight to about 15% by weight of the composition;
(d) a moisturizer selected from the group consisting of sodium pyrollidone carboxylate, glycerin, propylene glycol, sorbitol and mixtures thereof and present in an amount from about 0.1% by weight to about 10% by weight of the composition;
(e) an alkyl ester of isosorbide selected from the group consisting of dimethyl isosorbide, diethyl isosorbide, dipropyl isosorbide, ethylmethyl isosorbide and mixtures thereof and present in an amount from about 0.05% by weight to about 10% by weight of the composition;
and
(f) a detergent selected from the group consisting of cocamidopropyl betaine, sodium potassium lauryl sulfate, sodium cocoylisethionate, disodium cocoamphopropionate and mixtures thereof and present in an amount from about 15% by weight to about 60% by weight of the composition.

4 more elements

Dependencies are inferred from the claim text.