ceramide

Ceramide is a kind of amide compound formed by dehydration of amino groups of long-chain fatty acids and sphingosine, There are mainly ceramide choline phosphate and ceramide ethanolamine phosphate. Phospholipids are the main components of cell membrane. 40% ~ 50% of sebum in stratum corneum is composed of ceramide. Ceramide is the main part of intercellular matrix and plays an important role in maintaining the water balance of stratum corneum. Ceramide has a strong ability to bind water molecules. It maintains skin moisture by forming a network structure in the…