Ceramides are a class of lipid molecules, specifically a type of sphingolipid, that are naturally present in the skin, as well as other tissues and cell membranes throughout the body. They play a crucial role in maintaining the skin’s moisture barrier and overall skin health.
The primary function of ceramides in the skin is to form a protective barrier that helps retain moisture, keeps out harmful substances, and prevents water loss. This barrier is essential for maintaining hydration, elasticity, and smoothness of the skin. As we age, the levels of ceramides in the skin tend to decrease, which can contribute to dryness, wrinkles, and other signs of aging.