Nevada State Board of Cosmetology Practice Exam

What defines single-process hair color?

1. Coloring the hair with highlights

2. Coloring the hair in one step without any lightening

3. Coloring the hair with multiple shades

4. Coloring the hair with a double process

The correct answer is: Coloring the hair in one step without any lightening

Single-process hair color refers to the technique of coloring the hair in one step, achieving a change in color without the need for any lightening beforehand. This method is typically used to apply a solid color or to cover grey hair effectively. It allows for a uniform color that can add richness and depth to the hair. The correct choice emphasizes that the process occurs in a single application without involving any lightening agents. This is crucial for clients looking for a natural, glossy look that is consistent from root to tip. In contrast, options that involve highlights or multiple shades imply a more complicated technique that includes varying colors or lightening processes, which does not apply to single-process color. Additionally, double-process color involves both lifting (lightening) the hair and then applying a color, which is entirely different from the single-process technique.