Nevada State Board of Cosmetology Practice Exam

What is toner used for in hair treatment?

1. To achieve pale and delicate colors after decoloring

2. To equalize porosity and fill the holes

3. To replace the missing primary colors

4. To deposit color without lifting

The correct answer is: To achieve pale and delicate colors after decoloring

Toner is a type of hair treatment used to achieve pale and delicate colors after the hair has been lightened or decolored. While options B, C, and D may seem like they could be related to toner in hair treatment, they are not necessarily correct because they do not specifically address the purpose of toner. Option B talks about equalizing porosity and filling holes, which can be achieved through other hair treatments, such as moisturizing masks. Option C mentions replacing missing primary colors, which is typically done through hair dye or color-refreshing treatments, not toner. Option D discusses depositing color without lifting, which could result in a darker color, rather than the desired pale and delicate shades achieved by using toner on pre-lightened hair. Therefore, option A is the best answer as it specifically addresses the main purpose of toner in hair treatment.