North Dakota Cosmetology Practice Exam

What is the function of a toner in hair coloring?

1. To lighten the hair

2. To correct or enhance the color after bleaching

3. To add moisture to the hair

4. To straighten the hair

The correct answer is: To correct or enhance the color after bleaching

The function of a toner in hair coloring is primarily to correct or enhance the color after bleaching. When hair is bleached, it often takes on unwanted warm tones, such as brassy yellows or oranges. A toner is designed to neutralize these tones and achieve the desired shade, such as ashy blondes or cool browns. Using a toner can adjust the overall color by adding subtle tones to the hair. For instance, purple toners are commonly used to counteract yellow hues, while blue toners are effective for neutralizing orange tones. This process helps achieve a more balanced, flattering final color, making toners an essential step in the hair coloring process following bleaching. Other options, such as lightening the hair or straightening it, do not adequately describe the primary role of a toner in the coloring process, and while adding moisture is beneficial, it is not directly related to the toner's function in color correction or enhancement.