PROBLEM TO BE SOLVED: To provide a composition for supplementing lipid by external use to prevent rough skin, dry skin, aging skin, etc. from being caused by reduction of the lipid between horny cells in the horny layer of the skin outermost layer.SOLUTION: The invention provides a cosmetic composition, skin itch inhibiting composition, dry skin preventing and improving composition, rough skin improving composition, skin transpiration inhibition composition, skin moisturizing composition, skin barrier function improving composition, tight junction function enhancing composition, and CLDN1 expression promoting composition, characterized by containing saponarin which is one kind of sphingolipid and flavonoid. As sphingolipid, glucosylceramide derived from Amorphophallus konjac and the like is preferable.
