The purpose of the present invention is to provide a composition for maintaining hygiene in an oral cavity. A composition for cleaning inside an oral cavity that includes baking soda, an acid, an emulsifier, and a base material is provided.本發明係提供用以保持口腔內清潔的組成物。提供含有碳酸氫鈉、酸、乳化劑及基材之口腔內洗淨用組成物。