PROVIDED ARE: A LIQUID ORAL COMPOSITION IN WHICH AN ASCORBIC ACID PHOSPHATE ESTER COMPOUND IS MIXED, WHEREIN THE STABILITY OF THE ASCORBIC ACID PHOSPHATE ESTER COMPOUND HAS BEEN IMPROVED, THE REDUCED PERSISTENCE AND GENERATION OF SEDIMENT THEREOF OVER TIME HAVE BEEN SIMULTANEOUSLY INHIBITED, AND THE COMPOSITION FEELS GOOD INSTEAD OF FEELING ODD WHEN USED AND A METHOD FOR STABILIZING ASCORBIC ACID PHOSPHATE ESTERS OR SALTS THEREOF IN LIQUID ORAL COMPOSITIONS. A LIQUID ORAL COMPOSITION CONTAINING (A) AN ASCORBIC ACID PHOSPHATE ESTER OR SALT THEREOF AND NOT CONTAINING AN ABRASIVE, WHEREIN (B) AN ORGANIC ACID OR SALT THEREOF AND (C) AN ORTHO-PHOSPHATE HAVE BEEN MIXED, PH HAS BEEN SET TO BE 6.5-8.0, AND THE WATER CONTENT HAS BEEN SET TO BE 60 WT% OR MORE. A METHOD FOR STABILIZING ASCORBIC ACID PHOSPHATE ESTERS OR SALTS THEREOF IN LIQUID ORAL COMPOSITIONS, WHEREIN COMPONENT (B) AND COMPONENT (C) ARE MIXED INTO A LIQUID ORAL COMPOSITION CONTAINING COMPONENT (A) AND NOT CONTAINING AN ABRASIVE, THE PH IS SET TO BE 6.5-8.0, AND THE WATER CONTENT IS SET TO BE 60 WT% OR MORE.
