PROBLEM TO BE SOLVED: To provide a transparent liquid composition for an oral cavity which can exhibit an excellent prevention effect on dental plaque formation by further enhancing an adsorption effect of cetylpyridinium chloride, which has excellent antimicrobial activity against oral bacteria, to tooth surface.SOLUTION: There is provided a transparent liquid composition for an oral cavity which contains component (a): cetylpyridinium chloride, component (b): a polyoxyethylene hydrogenated castor oil having an average number of moles of added ethylene oxide of 10 or more and 30 or less, component (c): menthol and component (d): an aqueous solvent in a predetermined amount.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】本発明の目的は、口腔内細菌に対して優れた抗菌活性を有する塩化セチルピリジニウムの歯牙表面などへの吸着効果が一層高められ、優れた歯垢形成防止作用を発揮し得る口腔用の透明液状組成物を提供することにある。【解決手段】本発明に係る口腔用透明液状組成物は、成分(a):塩化セチルピリジニウム、成分(b):エチレンオキシドの平均付加モル数が10以上、30以下のポリオキシエチレン硬化ヒマシ油、成分(c):メントール、および成分(d):水系溶媒をそれぞれ所定量ずつ含有することを特徴とする。【選択図】なし
