Arizona Cosmetology Practice Exam

Before performing a chemical service on a client, it is essential to check the client's hair history and health. This is crucial because the state of the hair can significantly impact how it reacts to chemical treatments. By reviewing the client’s previous chemical services, such as color treatments, relaxers, or perms, you can assess the hair's condition, any potential damage, and whether it has been previously treated with incompatible products. Additionally, understanding the hair's porosity, elasticity, and overall health will help in determining the appropriate treatment products, settings, and techniques to achieve the desired result while minimizing the risk of damage or adverse reactions.

Checking only the client's nail condition, skin type, or demographic factors like age and gender does not provide the necessary insights into how well the hair can handle a chemical service, making it vital to focus on hair history and health for optimal outcomes in chemical treatments.