PROBLEM TO BE SOLVED: To provide: an oral care composition that has excellent retention of metal protein in the oral cavity and is applied in the oral cavity without sense of discomfort and effectively takes metal protein-derived effect and a method for improving retention of metal protein in the oral cavity in the oral care composition.SOLUTION: The oral care composition is obtained by adding 0.03-10 mass% of metal protein (A) and 0.1-15 mass% of one or more carboxy group-containing water-soluble polymer compounds (B) selected from among carrageenan, xanthan gum, gum arabic and pectin to an oral care composition to be patched and applied to the oral cavity and forming the composition into a film state. The method for improving retention of metal protein in the oral cavity in the oral care composition includes adding specific amounts of the component (A) and the component (B) to the oral care composition to be patched and applied to the oral cavity and forming the composition into a film state.COPYRIGHT: (C)2013,JPO&INPIT【課題】金属タンパク質の口腔内滞留性に優れ、更には口腔内で違和感なく適用でき金属タンパク質由来の効果を有効に奏する口中ケア組成物及び口中ケア組成物における金属タンパク質の口腔内滞留性向上方法を提供する。【解決手段】口腔内に貼付して適用される口中ケア組成物に、(A)金属タンパク質を0.03~10質量%と、(B)カラギナン、キサンタンガム、アラビアガム、ペクチンから選ばれる1種以上のカルボキシル基を有する水溶性高分子化合物を0.1~15質量%とを配合し、フィルム状に形成したことを特徴とする口中ケア組成物。口腔内に貼付して適用される口中ケア組成物に、上記(A)成分と(B)成分とを特定量で配合し、フィルム状に形成することを特徴とする、口中ケア組成物における金属タンパク質の口腔内滞留性向上方法。【選択図】なし
