PROBLEM TO BE SOLVED: To provide a skin whitening agent, a melanogenesis inhibitor and a dopa oxidase activity inhibitor high in safety.SOLUTION: The dopa oxidase activity inhibitor contains Liquidambar formosana or an organic solvent extract thereof as an effective ingredient. Also, the skin whitening agent containing the Liquidambar formosana or the organic solvent extract thereof as an effective ingredient.COPYRIGHT: (C)2012,JPO&INPIT【課題】安全性が高い、美白剤、メラニン生成抑制剤及びドーパオキシダーゼ活性抑制剤を提供すること。【解決手段】ロロツウ又はその有機溶剤抽出物を有効成分とするドーパオキシダーゼ活性抑制剤。【選択図】なし