PROBLEM TO BE SOLVED: To provide a liquid oral composition which has high buffer capacity to acid around pH 6.8, is excellent in a feeling of use, is a formulation capable of stably maintaining hydroxyapatite in dissolved state, and has sufficient bactericidal activity against Streptococcus mutans while reducing content of a bactericide.SOLUTION: The invention provides a liquid oral composition having a buffer agent containing citric acid and sodium citrate, and a pH adjuster, with a pH adjusted in the range of 5.6-8.0.COPYRIGHT: (C)2015,JPO&INPIT【課題】pH6.8付近で酸に対する緩衝能が高く、使用感に優れ、ハイドロキシアパタイトを溶解状態で安定的に維持可能な製剤であり、かつ殺菌剤の配合量を低減しながらもミュータンス菌に対する十分な殺菌活性を有する液体口腔用組成物を提供する。【解決手段】クエン酸及びクエン酸ナトリウムを含む緩衝剤とpH調整剤とを有し、pHを5.6~8.0の範囲に調整して液体口腔用組成物とする。【選択図】なし
