What is a cuticle made up of?

The cuticle is primarily composed of a tough protein called keratin, which is also found in hair and nails. It serves as a protective barrier for the underlying tissues, helping to prevent moisture loss and shield against pathogens. The cuticle is made up of several layers of cells that are tightly packed, contributing to its strength and resilience. Additionally, it may contain lipids and other substances that aid in its protective functions.