CUTICULAR DAMAGE
Much of the shine that makes healthy hair so attractive is due to the cuticle. Intact cuticle cells are smooth and glossy, and reflect light from their surfaces. The first level of damage the hair can sustain is to the cuticle. This is when the cuticle layer starts to become open and abraded. Cuticle damage causes the hair to tangle.

CAUSE
Cuticular damage is caused by the use of inferior hair products, styling tools, poor styling techniquess, heat styling, sun, wind, and chemical services.

IDENTIFICATION
When the cuticle is closed and flat it reflects more light, making the hair shiny. Where more cuticle damage exists the hair is dull of a less shiny appearance. Take a small section of hair starting at the scalp run your fingers down the section; an open cuticle will feel rough to the touch.