| abstract |
The present invention provides an oral care composition comprising: (a) a first composition comprising a silica abrasive and a first zinc compound selected from zinc citrate, zinc chloride, zinc acetate, zinc lactate, zinc salicylate, zinc sulfate, and zinc nitrate; and (b) a second composition comprising a calcium carbonate abrasive; wherein the first composition and/or the second composition further comprises a second zinc compound selected from zinc oxide, zinc carbonate and zinc tartrate; and wherein the oral care composition optionally further comprises from 0.1 to 1.75 weight % of a tartar control agent, based on the total weight of the oral care composition. |