| 摘要 |
PROBLEM TO BE SOLVED: To provide a hyaluronic acid production stimulator which has an excellent hyaluronic acid production-stimulating action for fibroblasts, good stability and safety, and is suitable for skin cares, and to provide a skin care preparation which contains the stimulator and is useful for preventing and improving a skin-ageing syndrome, stimulating the healing of wounds, and treating diseases accompanied by hyaluronic acid abnormal decomposition. SOLUTION: To provide a hyaluronic acid production stimulator which has an excellent hyaluronic acid production-stimulating action for fibroblasts, good safety and safety, and is suitable for skin cares, and to provide a skin care preparation which contains the stimulator and is useful for preventing and improving a skin-ageing syndrome, stimulating the healing of wounds, and treating diseases accompanied by hyaluronic acid abnormal decomposition.
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