PROBLEM TO BE SOLVED: To provide an oral composition containing ascorbic acid ester or a salt thereof in which the discoloration of a formulation is prevented and at the same time antiseptic power is excellent, and to provide a method of preventing the discoloration of the oral composition.SOLUTION: The invention provides: an oral composition containing (A) 0.1-1 mass% of ascorbic acid phosphoric ester or a salt thereof, (B) 0.01-1 mass% of a p-hydroxybenzoate, and (C) 0.01-0.1 mass% of epsilon aminocaproic acid and a method of preventing the discoloration of the oral composition by compounding the component (C) into the oral composition containing the component (A) and the component (B) to prevent the discoloration by the combined use of the components (A) and (B).SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】防腐力が優れると共に製剤変色が防止されたアスコルビン酸エステル又はその塩を含有する口腔用組成物及び該口腔用組成物の変色防止方法を提供する。【解決手段】(A)アスコルビン酸リン酸エステル又はその塩を0.1~1質量%、(B)パラオキシ安息香酸エステルを0.01~1質量%、及び(C)イプシロンアミノカプロン酸を0.01~0.1質量%含有してなることを特徴とする口腔用組成物、及び前記(A)成分と(B)成分とを含有する口腔用組成物に(C)成分を配合して、前記(A)、(B)成分の併用による口腔用組成物の変色を防止する、前記口腔用組成物の変色防止方法。【選択図】なし
