Patent ID: 9439846
Filing Date: 2016-09-13
CPC Classification: A61K,A61Q

Claim Text:
1. An oral care composition comprising: a) 0.1 to 4% by weight of at least one catechin, wherein the at least one catechin is epigallocatechin gallate (EGCG); b) 0.1 to 10% by weight of a zinc salt selected from zinc chloride, zinc nitrate and zinc acetate or mixtures thereof; and c) an orally acceptable base comprising calcium carbonate; wherein the oral care composition has a sufficient amount of the zinc salt to result in a colour rating of 3 and a higher percentage of the EGCG in the oral care composition, as compared to the same oral care composition not containing the zinc salt, when the oral care composition has been stored for four weeks at a temperature of 40-50 degrees Celsius and a relative humidity of 72-82.