Described herein are oral care compositions comprising a crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, together with a blue to violet-blue pigment； including some embodiments which further comprise an ethylene oxide, propylene oxide block co-polymer.本文所述為口腔護理組成物，其包含與過氧化氫複合的交聯聚乙烯吡咯啶酮，混合一種藍色至藍紫色的色素；包括一些具體實例，其進一步含有一種環氧乙烷、環氧丙烷的嵌段共聚物。
