Maryland Cosmetology State Practice Exam

What is the primary function of a toner in hair coloring?

1. To add shine to the hair

2. To adjust the tone of the hair color

3. To lighten the hair

4. To protect the hair from heat

The correct answer is: To adjust the tone of the hair color

The primary function of a toner in hair coloring is to adjust the tone of the hair color. Toners are used after the hair has been lightened to help neutralize any unwanted undertones, such as brassiness in blonde hair, and to achieve the desired shade. This can involve shifting the hair color towards cooler or warmer tones, depending on the stylist's goal. While adding shine to the hair, lightening the hair, and protecting the hair from heat are important aspects of hair care and styling, they are not the main roles of a toner. Instead, toners specifically target the refinement of color tones to enhance the overall appearance and to ensure that the final result meets the client's expectations.