Back to results
US 5,972,359 AGranted
Skin care compositions and method of improving skin appearance
AssigneeThe Procter & Gamble Company
InventorsMark Richard Sine, James Pedrosa SaNogueira, Jr., Nancy Coultrip Dawes
Life of this patent
Estimating the term…
Abstract
Disclosed are topical compositions which provide good coverage of skin imperfections, e.g., pores and uneven skin tone, while retaining a natural skin appearance. The compositions contain a particulate material having a refractive index of at least about 2, e.g., TiO.sub.2.
Claims23
A topical composition formed by combining components comprising:
- (a) from about 0.3% to about 2% by weight of the composition formed of pigmentary grade particulate material having a refractive index of at least about 2 and a neat primary particle size of from greater than 100 nm to about 300 nm;
- and
- (b) a topical carrier comprising from about 60% to about 99.7% by weight of the composition formed of a substantially liquid diluent;
- the composition having a contrast ratio of from about 9 to about 30 and a % transmittance of from about 92% to about 62%.
1 more element
A topical composition formed by combining components comprising:
- (a) from about 0.3% to about 2% by weight of the composition formed of a pigmentary grade particulate material selected from the group consisting of TiO.sub.2, ZnO, ZrO.sub.2, and combinations thereof, and having a neat primary particle size of from greater than 100 nm to about 300 nm;
- and
- (b) a topical carrier comprising from about 60% to about 99.7% by weight of the composition formed of a substantially liquid diluent;
- wherein the particulate material has a primary particle size when dispersed in the composition of from greater than 100 nm to about 1000 nm and the composition has a contrast ratio of from about 9 to about 30, a % transmittance of from about 92% to about 62%, and an apparent viscosity, in centipoise, of from about 5,000 to about 200,000.
1 more element
Dependencies are inferred from the claim text.