1. A lipid molecule composed of a fatty acid linked to a sphingoid base, found in cell membranes and involved in cell signaling and skin barrier function.
Usage: technical; biochemistry; cosmetics

Examples

• Ceramides are essential components of the stratum corneum, the outermost layer of skin.
• Many moisturizing creams contain ceramides to help restore the skin barrier.
• The body naturally produces ceramides to maintain cell membrane integrity.
• Ceramide levels can decrease with age, leading to drier skin.
• Researchers study ceramides to understand their role in cell death and inflammation.