PROBLEM TO BE SOLVED: To provide a composition containing p-coumaric acid stably.SOLUTION: The composition contains the following components (A) to (E): (A) a p-coumaric acid, (B) an alcohol having one to three intramolecular hydroxy group, (C) a neutralizer, (D) a chelate agent, and (E) a pH buffer.COPYRIGHT: (C)2015,JPO&INPIT【課題】p-クマル酸を安定に含有する組成物を提供する。【解決手段】下記の成分(A)~(E)を含有させる:(A)p-クマル酸、(B)分子内に水酸基を1~3個有するアルコール、(C)中和剤、(D)キレート剤、(E)pH緩衝剤。【選択図】なし