Ace the Rhode Island Cosmetology & Barbering Exam 2026 – Style Your Future with Confidence!

The three primary layers of hair are the cuticle, cortex, and medulla.

The cuticle is the outermost layer, comprised of overlapping scales that protect the inner structures of the hair and contribute to its shine and smoothness. It plays a crucial role in preventing damage and moisture loss.

The cortex lies beneath the cuticle and is the thickest layer of hair. It contains the fibrous proteins that give hair its strength, elasticity, and color. The composition of the cortex is also responsible for the overall texture and appearance of the hair.

The medulla is the innermost layer and is often more prevalent in coarser hair types. It is a soft, spongy layer that may or may not be present in all hair types, with its main function relating to hair structure and density.

This understanding of hair structure is essential for various cosmetology and barbering practices, enabling professionals to select the right treatments and products to enhance hair health and aesthetics effectively.