The invention provides mouthwash formulations having improved taste, coupled with good whitening efficacy, which comprise a whitening agent such as hydrogen peroxide together with a combination of a first acid such as citric acid and a second acid such as phosphoric acid. In further embodiments, the mouthwashes may comprise a sucralose and saccharin combination, an acidic polymer, one or more anticalculus agents, e.g., alkali pyrophosphate salts, copolymers of maleic anhydride and methyl vinyl ether and other ingredients.本發明提供具有改良味道、結合良好美白功效之漱口水調配物，其包含美白劑例如過氧化氫連同第一種酸例如檸檬酸與第二種酸例如磷酸之組合物。於進一步具體實例中，該漱口水可包含蔗糖素與糖精之組合物、酸性聚合物、一或多種抗牙垢劑(例如，鹼性焦磷酸鹽)、順丁烯二酸酐與甲基乙烯基酯之共聚物及其他成分。
