A compound used to prevent diseases caused by aquaporin deficiency, which is 18β-Glycyrrhetinic acid derivative. Said compound can not only prevent diseases caused aquaporin deficiency, but be able to prevent aquaporin (AQP) production and enhance skin function. Since AQPs have many advantages in skin cells, e.g. promoting water and glycerine molecular transportation, increasing skin elasticity and cuticle moisture, increasing the cell proliferation and cell migration, aquaporin can promote skin bather function and wound cicatrization. Therefore, said compound can be applied potentially as a medicinal cosmetic in skin medicine cosmetology, or as a new medical composition to treat diseases caused by AQP abnormality, such as urine concentration defect, wound healing slow down, corneal re-epithelialization slow down and etc.
