The present invention provides oral care compositions comprising, by total weight of the composition: (a) 15 to 35 weight % calcium carbonate； and (b) 5 to 25 weight % talc. In one aspect, the total concentration of talc and calcium carbonate in the composition is greater than 35 weight %. In another aspect where the total concentration of talc and calcium carbonate is 35 weight % or less, the composition also includes an additional structuring agent, which comprises at least one of: (i) a cellulose ether thickening agent； and (ii) an inorganic thickening agent selected from thickening silica, a clay thickening agent, and mixtures thereof.本發明提供一種口腔保健組成物，其包含，根據該組成物之總重：(a)15至35重量%之碳酸鈣；以及(b)5至25重量%之滑石。在一個態樣中，滑石與碳酸鈣在該組成物中之總濃度係大於35重量%。在另一態樣中，其中滑石與碳酸鈣之總濃度係35重量%或更低，該組成物亦包含一額外的結構化劑，其包含至少一以下成分：(i)一纖維素醚增稠劑；以及(ii)一無機增稠劑，其選自增稠矽石、黏土增稠劑及其混合物。
