The present invention relation to an oral care composition comprising an ionic liquid wherein the ionic liquid comprises: (a) a pyrazolium cation and (b) an anion selected from the group consisting of acetate, halide, phosphate, alkyl phosphate, sulphate, alkyl sulphate and tosylate is provided.本發明提供關於一種包含離子液體之口腔護理組成物,其中該離子液體包含:(a)一吡唑鎓陽離子,及(b)一陰離子選自由乙酸根、鹵化物、磷酸根、烷基磷酸根、硫酸根、烷基硫酸根及甲苯磺酸根所構成群組。