Arizona Barber Practice Exam

The primary difference between permanent hair color and temporary hair color lies in how they interact with the hair structure. Permanent hair color is specifically formulated to penetrate the hair shaft and chemically alter the hair's natural pigment, thereby providing a long-lasting change in color that does not simply wash out over time. This process typically involves a chemical reaction that opens the hair cuticle to allow the color to enter deeply, making it a more enduring solution for altering hair color.

In contrast, temporary hair color coats the surface of the hair without altering its structure, allowing the color to be easily washed out over several shampoos. This means that while temporary hair color can provide a quick change, it lacks the permanence and depth of the color provided by permanent hair color. Understanding this fundamental distinction is crucial for anyone in the cosmetology field, as it helps guide clients in choosing the appropriate hair color product for their desired results.