| 摘要 |
PROBLEM TO BE SOLVED: To provide a skin external preparation containing hyperforin excellent in light stability and water solubility.SOLUTION: A skin external preparation containing an inclusion complex comprising a hyperforin represented by the formula (I) and/or a derivative thereof and a cyclodextrin supporting the same. [In the formula, R is methyl or ethyl, Ris a hydrogen, Cto Cacyl group or the like, Ris 3-methyl-but-1-yl, and an oxo group is present at the 1-position and 10-position.] |
