PROBLEM TO BE SOLVED: To provide a composition for oral cavity which improves recalcification effect by improving intake performance of fluorine ions into tooth enamel.SOLUTION: There is provided a composition for oral cavity which comprises a component (A) 0.005 to 2 mass% of one or two or more fluorine ion-feeding compounds selected from NaF, NHF, KF or the like, a component (B) 4 to 30 mass% of a higher alcohol having 12 to 22 carbon atoms, a component (C) 0.1 to 10 mass% of a surfactant including one or more selected from a nonionic surfactant (c1) such as a sorbitan fatty acid ester and an anionic surfactant (c2) which is a fatty acid having 12 to 22 carbon atoms or a salt thereof and a component (D) water, where the content of the component (c1) is 0.05 mass%, the mass ratio ((A)/(B)) between the amount of the component (A) in terms of fluorine atoms and the content of the component (B) is 0.001 to 0.2 and the molar amount of a polyvalent metal compound other than the component (A) is less than 0.1 times the molar amount of the component (A).SELECTED DRAWING: Figure 1【課題】歯のエナメル質へのフッ素イオンの取り込み性が向上し、再石灰化効果を高めた口腔用組成物の提供。【解決手段】成分（Ａ）ＮａＦ、ＮＨ４Ｆ、ＫＦ等から選ばれる１種又は２種以上のフッ素イオン供給化合物フッ素原子換算量で０．００５～２質量％、成分（Ｂ）炭素数１２～２２以下の高級アルコール４～３０質量％、成分（Ｃ）ソルビタン脂肪酸エステル等のノニオン界面活性剤（ｃ１）、及び炭素数１２～２２の脂肪酸又はその塩であるアニオン界面活性剤（ｃ２）から選ばれる１種以上を含む界面活性剤０．１～１０質量％、及び成分（Ｄ）水を含有し、成分（ｃ１）の含有量が０．０５質量％以上であって、成分（Ａ）のフッ素原子換算量と成分（Ｂ）の含有量との質量比（（Ａ）／（Ｂ））が、０．００１～０．２、成分（Ａ）以外の多価金属化合物（Ｅ）のモル量が成分（Ａ）のモル量の０．１倍未満である、口腔用組成物。【選択図】図１
