| abstract |
It is intended to provide a technique whereby the amount of ceramide in the skin is increased to thereby improve the barrier function and moisture-retention properties of the skin and relieve chapped skin or wrinkles. Namely, liposomes, which are prepared by using sphingomyelin having an extremely high purity, are added to a cosmetic. By preparing sphingomyelin in a nano size, it becomes possible to deliver the sphingomyelin to the deep core of the skin. Thus, the barrier function and moisture-retention properties of the horny layer are improved, thereby establishing the effects of improving chapped skin and relieving atopic symptoms. |