AN ORAL CARE COMPOSITION AND METHOD OF MAINTAINING ANTICARIES ACTIVITY OF FLUORIDE ION IN AN ORAL CARE COMPOSITION ARE DESCRIBED. AN ORAL CARE COMPOSITION COMPRISES A FLUORIDE ION SOURCE SUFFICIENT TO MAINTAIN A HIGH FLUORIDE CONTENT IN THE COMPOSITION, AN EFFECTIVE AMOUNT OF A DESENSITIZING AGENT AND WATER. A METHOD OF MAINTAINING ANTICARIES ACTIVITY OF FLUORIDE ION IN AN ORAL CARE COMPOSITION COMPRISES PROVIDING AN ORAL CARE COMPOSITION COMPRISING FLUORIDE IONS, AN EFFECTIVE AMOUNT OF A DESENSITIZING AGENT AND WATER.