The present invention relates to an oral care composition for use in the treatment or prevention of erosive tooth demineralization, plaque, and caries. This oral care composition includes zinc lactate dihydrate, a stannous ion source, at least one phosphate salt, and a buffer system.本發明係有關一種使用在治療或預防侵蝕性的牙齒去礦化、牙菌斑和齲齒之口腔保健組成物。此口腔保健組成物包括乳酸鋅二水合物、亞錫離子源、至少一磷酸鹽以及一緩衝液系統。