曲酸用作食品添加剂 ,可起到保鲜、防腐、抗氧化作用 ,添加到化妆品中可有效地治疗雀斑、老人斑、色素沉着、粉刺等 ,因此被世界各国广泛应用。但是 ,近来的科学研究表明 ,曲酸具有致癌性。日本官方已作出决定 :禁止将曲酸作为食品添加剂使用 ,禁止进口和生产含有曲酸的化妆品 Kojic acid can be used as a food additive to protect freshness, preservative and antioxidation. It can be used to effectively treat freckles, age spots, pigmentation and acne in cosmetic products. Therefore, kojic acid is widely used in many countries in the world. However, recent scientific studies show that kojic acid is carcinogenic. Japanese officials have made the decision: the use of kojic acid as a food additive is prohibited and the import and production of kojic acid-containing cosmetics