CERAMIDE SYNTHESIS-PROMOTING AGENT AND COSMETIC, QUASI- DRUG AND PREPARATION FOR EXTERNAL USE FOR SKIN CONTAINING THE SAME CERAMIDE SYNTHESIS-PROMOTING AGENT

摘要

PROBLEM TO BE SOLVED: To obtain the subject promoter having an effect to improve skin disorder caused by abnormality of skin barrier function by including an ingredient selected from glycyrrhizin (derivative), asparagus extract and Ruscus aculeatus L. extract. SOLUTION: This promoter is obtained by including one or more kinds of compounds selected from glycyrrhizin (salt), a glycyrrhizin derivative (salt), asparagus extract and Ruscus aculeatus L. extract. Dipotassium glycyrrhizate, ammonium glycyrhizate, stearyl glycyrrhizate, or the like, is preferably used as the glycyrrhizin (salt) and the glycyrrhizin derivative. A cosmetic, a quasi- drug and a preparation for extraction for external use for skin are each by including 0.0005-5.0 wt.% (as dried solid content) of the promoter as an active ingredient, and as necessary, a dye, a preservative, a perfume, a surface-active agent, a perfume, a pigment, or the like.