CPC A61K 8/27 (2013.01) [A61K 8/29 (2013.01); A61K 8/676 (2013.01); A61K 8/678 (2013.01); A61Q 17/04 (2013.01); A61K 2800/43 (2013.01); A61K 2800/522 (2013.01); A61K 2800/623 (2013.01)] | 20 Claims |
1. A method of reducing or preventing sunburn caused from visible light and ultraviolet (UV) radiation in a subject, comprising topically applying to the subject a sunscreen composition comprising:
(a) inorganic UV filtering agents comprising nanosized zinc oxide and nanosized titanium dioxide, present in the sunscreen composition in a total amount ranging from about 10% to about 50% by weight based on a total weight of the sunscreen composition, wherein the nanosized zinc oxide has a mean particle size ranging from about 10 nm to about 100 nm and the nanosized titanium oxide has a mean particle size ranging from about 5 nm to about 500 nm;
(b) antioxidants comprising vitamin E or derivatives thereof and vitamin C or derivatives thereof, present in the sunscreen composition in a total amount ranging from about 0.1% to about 5% by weight relative to the total weight of the sunscreen composition; and
(c) at least one inorganic pigment comprising iron oxide, present in the sunscreen composition in a total amount ranging from about 0.01% to about 5% by weight relative to the total weight of the sunscreen composition,
wherein the at least one inorganic pigment and the antioxidants are present in an amount effective to reduce or prevent sunburn caused from visible light.
|