| abstract |
An object of the present invention is to provide a preparation technique capable of suppressing browning without causing precipitation in an oral composition containing glycyrrhizic acids, hyaluronic acid, and water under high-temperature storage conditions. That is. An oral composition containing an alkali metal fluoride, fluorophosphoric acid, and / or a salt of fluorophosphoric acid together with glycyrrhizic acids and hyaluronic acid and water, precipitates even under high temperature storage conditions. Browning can be suppressed without causing it. [Selection figure] None |