Disclosed herein are oral care compositions comprising an orally acceptable vehicle, calcium carbonate and a preservative system comprising benzyl alcohol, benzoic acid or a salt of benzoic acid and an alkylene glycol.本文揭示一種口腔保健組成物,其包含口腔可接受之媒劑、碳酸鈣、及包含苯甲醇、苯甲酸或苯甲酸之鹽、與伸烷烴二醇之防腐劑系統。