| abstract |
(57) [Problem] To provide a skin external preparation having a remarkable moisturizing effect and a skin roughness preventing effect. An external preparation for skin comprising a glycosphingolipid having a structure represented by the following formula: Embedded image (In the above formula, R 1 is 1-4 selected from the group consisting of uronic acid, glucosamine, galactose and mannose. Hexose or one uronic acid, R 2 is an alkyl group, alkenyl group or alkynyl group optionally having a cycloalkyl group; R 3 is an alkyl group. The alkyl, alkenyl and alkynyl groups are straight-chain or branched and may be substituted or unsubstituted. |