The present invention provides an oral composition comprising: (a) from 1 wt % to 60 wt % of a calcium-containing abrasive； (b) a calcium-catching phosphate source in an amount sufficient to provide at least 100 mM of phosphate ions, PO43−； (c) no more than 20 wt % of a humectant； and (d) at least 5 wt % of water； wherein the oral composition has a pH from 8 to 11.
