Missouri Board of Cosmetology Practice Exam

What is the primary difference between permanent and temporary hair color?

1. Duration of the color in the hair

2. Price of the hair color service

3. Type of shampoo used

4. Application technique

The correct answer is: Duration of the color in the hair

The primary difference between permanent and temporary hair color lies in the duration of the color in the hair. Permanent hair colors are designed to alter the hair's natural pigment and typically contain chemicals that open the hair cuticle, allowing the color to penetrate deeply. This results in a long-lasting effect; the color remains until the hair grows out or is cut off. On the other hand, temporary hair color typically coats the hair surface and washes out with shampoo after a few washes. This makes it ideal for clients looking to experiment with their color or for use on special occasions without committing to a long-term change. Understanding this distinction is crucial for professionals, as it affects client expectations, care instructions, and the overall outcome of the coloring service. Factors such as price, shampoo types, and application techniques may vary, but they do not define the fundamental difference in how long the color endures in the hair.