PROBLEM TO BE SOLVED: To provide a new ameliorating agent for non-uniformity of skin color and external preparation for skin having excellent ameliorating effects on the non-uniformity of the skin color.SOLUTION: The ameliorating agent for the non-uniformity of the skin color comprises coumarinic acid or a salt thereof as an active ingredient. The external preparation for skin comprises the ameliorating agent for the non-uniformity of the skin color.COPYRIGHT: (C)2007,JPO&INPIT【課題】皮膚色の均一性改善効果に優れた、新規な皮膚色均一性改善剤及び皮膚外用剤を提供する。【解決手段】クマリン酸又はその塩を有効成分とする皮膚色不均一性改善剤、及び前記皮膚色不均一性改善剤を含有する皮膚外用剤である。【選択図】 なし
