| abstract |
(57) Abstract: [PROBLEMS] To provide a novel external preparation for skin having an action of promoting stratum corneum exfoliation and an excellent action of improving rough skin and a method for producing an active ingredient thereof. SOLUTION: Soybean, pea, adzuki bean, quail, common bean, licorice, clara, Ebisugusa, Jacobs thorns, psychedelic, purple horse mackerel, peanut, Characterized by hydrolyzing a water extract of legume seeds selected from the group consisting of kudzu, fenugreek, and fava beans or a processed product thereof with a proteolytic enzyme, and using a fraction having a molecular weight of 10,000 or less as an active ingredient. External skin preparation. A method for producing an active ingredient for an external preparation for skin, comprising hydrolyzing a water extract of the above-mentioned specific beans or a processed product thereof with a protease, and fractionating a fraction having a molecular weight of 10,000 or less. |