TOPICAL COMPOSITIONS CONTAINING VITAMIN C
The present invention provides topical compositions comprising a combination ascorbic acid, epigallocatechin gallate, water and 1,3-propanediol.
1 . A topical composition comprising at least 10% by weight of ascorbic acid, about 0.05 to about 2.5% by weight of epigallocatechin gallate, water and 1,3-propanediol, wherein the weight ratio of water to 1,3-propanediol in the composition is at least 0.6.
2 . The composition of claim 1 comprising about 0.1% by weight of epigallocatechin gallate based on the total weight of the composition.
3 . The composition of claim 1 comprising at least 40% by weight of 1,3-propanediol based on the total weight of the composition.
4 . The topical composition of claim 1 , wherein the weight ratio of water to 1,3-propanediol in the composition is at least 0.8.
5 . The composition of claim 1 having a pH of about 3.6 to about 4.2.
6 . The composition of claim 1 in the form of a single aqueous phase.
7 . A topical composition comprising at least 15% by weight of ascorbic acid based on the total weight of the composition, about 0.1% by weight epigallocatechin gallate based on the total weight of the composition, feverfew extract, gluconolactone, water, and at least 40% by weight of 1,3-propanediol based on the total weight of the composition, wherein the weight ratio of water to 1,3-propanediol in the composition is at least 0.6.
8 . A cosmetic method for treating skin, comprising topically applying to skin in need of treatment for skin brightening or lightening the topical composition of claim 1 .