1. What is ceramides? Ceramide is a kind of phospholipid with ceramide as the backbone, mainly including ceramide phosphocholine and ceramide phosphoethanolamine. Phospholipids are the main component of cell membranes, and 40% to 50% of sebum in the stratum corneum is composed of ceramides. Ceramide is the main component of the intercellular matrix and plays an important role in maintaining the balance of water in the stratum corneum. Ceramides for Skin has strong ability to bind water molecules and maintains skin moisture by forming a network structure in the stratum corneum. Therefore, ceramide has a moisturizing effect on the skin.2. The Specification of Ceramides Name: Ceramide CAS: 104404-17-3 Molecular Formula: C34H66NO3R Shelf Life 24 Months Specification: 98% Grade: Food Grade Certificate: COA MSDS Test Method: HPLC 3. The effect of ceramides on the skin(1) Moisturizing effect: Ceramides in Skin Care is the main component of lipids in the stratu…