PROBLEM TO BE SOLVED: To suppress the temporal discoloration of a cosmetic or a skin external preparation containing component (a) a C16-22 polyunsaturated fatty acid and component (b) a vitamin E.SOLUTION: The present invention provides a cosmetic or a skin external preparation containing following components (a), (b) and (c): (a) a C16-22 polyunsaturated fatty acid, (b) a vitamin E, and (c) Coix lacryma-jobi var. ma-yuen plant extract. There is also provided an agent for suppressing the discoloration of a composition, which contains Coix lacryma-jobi var. ma-yuen plant extract as an active ingredient, and contains following components (a) and (b): (a) at least one selected from C16-22 polyunsaturated fatty acids and (b) at least one selected from vitamin Es.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】 成分(a)炭素数16~22の多価不飽和脂肪酸及び成分(b)ビタミンE類を含む化粧料又は皮膚外用剤の経時的な変色を抑制すること。【解決手段】 次の成分(a)、成分(b)及び成分(c);(a)炭素数16~22の多価不飽和脂肪酸、(b)ビタミンE類、(c)ハトムギ抽出物を含有する化粧料又は皮膚外用剤;ハトムギ抽出物を有効成分とする、次の成分(a)及び成分(b);(a)炭素数16~22の多価不飽和脂肪酸から選ばれる1種又は2種以上、(b)ビタミンE類から選ばれる1種又は2種以上、を含有する組成物の変色を抑制する剤。【選択図】なし