| abstract |
[Objective] To provide a ceramide synthesis accelerator and an external preparation for skin containing one or more selected from extracts of asana, rodda, hantaikai and sacuna. [Constitution] One or more inclusions selected from the extracts of asana, rodda, hantaikai and sacuna of the present invention are excellent in promoting ceramide synthesis, safe and rough, and excellent in improving dry skin ing. Moreover, the skin external preparation containing these extracts is safe, rough skin, and excellent in the improvement effect of dry skin. |