The present invention relates to a peroxydisulfate oxidizing system for toothpaste compositions that provides excellent bleaching effect together with oral care compositions containing the oxidizing system and methods and uses therefor.本發明係關於用於牙膏組成物的過氧二硫酸鹽氧化系統,其提供極佳的漂白效果,及含有氧化系統的口腔護理組成物和方法與其用途。