Cuticle Structure and Function

Cuticle Structure and Function

Definition

• The cuticle is the outermost layer of the hair.

Composition

• Composed of multiple layers of keratinized, flattened cells (scales).

• Scales overlap in a roof-tile formation bound together with inter-cellular cement.

• Translucent, allowing light to penetrate the cortex pigments.

• Primarily made of keratin.

Functions

1. Protection: Shields the underlying cortex.

2. Barrier Regulation: Regulates water content of the hair fiber.

3. Aesthetic Qualities: Responsible for hair's luster and texture.

Implications for Hair Health

• Target for hair conditioning products.

• Shiny, soft hair indicates a healthy cuticle.

• Dry, brittle hair results from damaged cuticle cells.