Oral care composition comprising hexametaphosphate and pigment

The present invention relates to an oral care composition comprising: (a) a polymer having the following structure: (I) wherein a is independently selected from 2 to 130, and b is 15 to 67, and said polymer has a molecular weight of 1,700 Da to 15,000 Da; (b) a hexametaphosphate salt; (c) a Covariine blue; (d) an orally acceptable matrix; wherein the weight ratio of the polymer to the hexametaphosphate is from 1: 5 to 5: 1. 本发明涉及口腔护理组合物，其包含：(a)具有以下结构的聚合物，(I)其中a独立地选自2至130，且b为15至67，并且所述聚合物的分子量为1,700Da至15,000Da；(b)六偏磷酸盐；(c)Covarine蓝；(d)口腔可接受的基质；其中所述聚合物与六偏磷酸盐的重量比为1:5至5:1。