| abstract |
(57) [Summary] [Structure] A sterin derivative represented by the general formula (I). [Chemical 1] [In the formula, R 1 is a residue remaining after removing the hydrogen atom of the hydroxyl group of the sterins having one hydroxyl group, Is a group that is bonded to the oxygen atom to which the hydrogen atom of the hydroxyl group of sterins is bonded, and R 2 is (R 3 is a group represented by an alkenyl group having 6 to 20 carbon atoms or an alkyl group), M is a hydrogen atom, an alkali metal, an alkaline earth metal or the like. [Effect] Since it has a high effect of improving rough skin, can stabilize the lamellar liquid crystal structure, and has good surface activity, it can be widely used in cosmetics, toiletry products, pharmaceuticals, etc. as a skin external base, an emulsifier, etc. .. |