PROBLEM TO BE SOLVED: To provide an arginase activity accelerator capable of controlling the arginase activity in the skin and continuously imparting humectant effect to the skin even with a small amount, and excellent in safety, and to provide a preparation for external use for the skin containing the arginase activity accelerator and excellent in the durability of the humectant effect, the improving effect on the improvement of rough skin and safety.SOLUTION: An arginase activity accelerator containing an extract of GOSYUYU (fruit of Evodia rutaecarpa) as an active ingredient.COPYRIGHT: (C)2002,JPO【課題】 少量でも皮膚中のアルギナーゼ活性を調節して皮膚に継続的に保湿効果を与えることができ、しかも安全性に優れたアルギナーゼ活性促進剤およびそれを含有する保湿効果の持続性、肌荒れ改善効果、安定性に優れた皮膚外用剤を提供する。【解決手段】 呉茱萸(ゴシュユ)の抽出エキスを有効成分として含有するアルギナーゼ活性促進剤。
