Patent ID: 7834055
Filing Date: 2010-11-16
Classification: A61K,A61P

Abstract:
1. A method of treating rosacea or acne, the method comprising topically applying to the skin of a human afflicted with rosacea or acne an effective amount of a composition comprising: at least 10% (w/v) ascorbic acid; approximately 10% to 25% (w/v) glucosamine; and water, wherein the composition has a pH of about 3.5 to about 4.1; and wherein the composition is prepared by a process comprising: (a) dissolving about 10% to about 50% of the ascorbic acid in water at a temperature of between about 60° C. to about 90° C. to provide an aqueous ascorbic acid solution of at least 20% (w/v); (b) cooling the aqueous ascorbic acid solution to below about 40° C.; (c) combining the aqueous ascorbic acid solution with water, glucosamine, and ascorbic acid to provide a composition comprising water, approximately 10% to 25% (w/v) glucosamine and at least 10% (w/v) ascorbic acid; and (d) adjusting the pH of the composition to about 3.5 to about 4.1.