Patent ID: 8673345
Filing Date: 2014-03-18
Classification: A61K,A61P,A61Q

Abstract:
1. A method for treating age spots on skin for improvement comprising applying to the individual age spots for a period of two to eight weeks a patch comprised of a dried water soluble cellulose ether polymeric film impregnated with at least one skin lightening agent effective to lighten age spots, which is normally labile in one or more of air, light, heat, water, or metal; and at least one plasticizer selected from polyethylene glycol, butylene glycol, glycerin, propylene glycol, or mixtures thereof; wherein the activity of the labile active is maintained in the cellulose ether polymeric film; followed by application of at least one water based additive composition to the film in an amount sufficient to cause the film to completely dissolve and deposit the lightening agent in its active form onto the age spots and improve the appearance of the age spots 25% to 47% over baseline.