An oral care composition containing a source of stannous ions, a source of fluoride ions and an insoluble source of zinc ions, such as zinc oxide. The composition contains an amount of citric acid sufficient to increase the level of soluble zinc ions.一種口腔保健組成物,其包含錫離子源、氟離子源及不可溶鋅離子源,例如氧化鋅。組成物含足量檸檬酸以提升可溶鋅離子量。