Washington Barber License Practice Exam

Permanent hair color products are designed to enter the hair cortex and react with the natural pigments to create a new color that is permanent. This means that the tint molecules are not able to escape and wash out over time, unlike semi-permanent, demi-permanent, and temporary hair color products. Semi-permanent hair color is designed to partially deposit color onto the hair shaft, but it will eventually fade with washing. Demi-permanent hair color lasts longer than semi-permanent, but it still fades over time due to the molecules being able to escape the hair. Temporary hair color sits on top of the hair and can easily wash out with shampoo. Overall, permanent hair color is the only option that achieves long-lasting color by permanently trapping the tint molecules in the hair.