The present invention relates to a two part oxidizing system for toothpaste compositions, that provides excellent bleaching effect together with oral care compositions containing the oxidizing system and methods and uses therefor.本發明係關於一種用於牙膏組成物之二組分氧化系統,其提供了優異的漂白效果,連同含有該氧化系統之口腔護理組成物及其方法與用途。