| 摘要 |
PROBLEM TO BE SOLVED: To obtain the above cosmetic material improving a tenseness/wrinkle of a skin by activating the proliferation of dermal fibroblast cells and increasing the production of an extracellular matrix. SOLUTION: This cosmetic material for the prevention of aging, contains Hibiscus sabdariffa L., itself or an extract with an organic solvent and/or water. This plant extract is obtained by extracting a dried and powdered hibiscus, etc., with an aqueous alcohol, etc., usually at 4-100 deg.C. The amount of blending is optional, and in accordance with an object, 0.001-100wt.% extract is blended and used. The extract increases the amount of collagen in the skin of a mouse. |
