What role do ceramides play in the skin?

Ceramides play a crucial role in maintaining the skin's barrier function and overall health. They are lipid molecules found in the skin's outer layer, the stratum corneum, and are vital for retaining moisture and protecting the skin from environmental pollutants and irritants. As "cellular glue," ceramides help to hold skin cells together, ensuring that the skin remains intact and resilient. This barrier function is essential for preventing transepidermal water loss and maintaining the skin's hydration levels.

While ceramides contribute to skin hydration, the primary role of acting as cellular glue underscores their importance in maintaining structural integrity. They help to create a protective lipid matrix that supports not only hydration but also overall barrier function. This is why ceramides are often included in skincare formulations targeting dry or compromised skin, reinforcing their role in skin health.