Patent ID: 9474705
Filing Date: 2016-10-25
CPC Classification: A61K,A61P,A61Q

Claim Text:
1. A method for whitening discrete hyper pigmented spots on skin by applying to the discrete spots in need of whitening and not to the surrounding non-hyper-pigmented skin a liquid pigmented treatment composition comprising at least one skin whitening active in a polymeric coating material comprising 1-35% dimethicone silylate; from 1-50% of a volatile solvent selected from the group consisting of isododecane, dimethicone and mixtures thereof; from 1-50% of a non-volatile silicone oil having a viscosity of 20 to 200,000 cst at room temperature; from about 0.1 to 40% of a silicone surfactant; from about 0.1 to 15% of a quaternized montmorillonite mineral; and from 0.5 to 65% titanium dioxide in combination with pigments that, upon exposure to ambient air and moisture in skin, hardens to a water resistant, water vapor permeable, conformable solid film that colors the spots so they are shade matched with the surrounding non-hyperpigmented skin and remains unchanged in adherence and color to the spots for 24 hours after application and is thereafter applied to the spots every 12 to 72 hours to color the spots to shade match them to the surrounding untreated skin while whitening the treated spots over time while the pigmentation of the untreated surrounding non-hyperpigmented spots remains unchanged.