Pennsylvania Cosmetology Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

An applicator brush is the common tool used for applying relaxers. This tool allows for precise application of the relaxer cream on the hair, ensuring that it is evenly distributed from the roots to the ends. The design of the applicator brush helps the cosmetologist control the amount of product applied and reach all areas of the hair efficiently, which is crucial when working with chemical treatments like relaxers. Proper application is important because uneven distribution can lead to inconsistent results or hair damage.

In contrast, a hair dryer is primarily used for drying hair and setting styles, not for applying chemical treatments. Foil strips are typically used in coloring techniques to separate sections of hair during coloring processes, and hair scissors are used for cutting hair rather than applying products. Thus, using the right tool, like the applicator brush, is essential for effective and safe application of relaxers in cosmetology.