Described herein are aqueous oral care compositions comprising (a) an effective amount of a basic amino acid in free or orally acceptable salt form; and (b) a polymer system comprising (i) a cellulosic polymer, (ii) a gum polymer, and (iii) a polyacrylate polymer or co-polymer; and methods of making and using the same.本文係描述水性口腔護理組成物,其包含(a)有效量之呈游離或口腔可接受之鹽形式的鹼性胺基酸;及(b)聚合物系統,其包含(i)纖維素聚合物,(ii)膠聚合物,及(iii)聚丙烯酸酯聚合物或共聚物;及其製造及使用之方法。