Which safety precaution is important when performing chemical services on hair?

Conducting a patch test is a crucial safety precaution when performing chemical services on hair. This practice helps to identify any potential allergic reactions that a client may have to the chemical products being used. Before applying products like hair color or relaxers, a small amount of the product is applied to a discreet area of the client’s skin, typically behind the ear or on the inside of the elbow, and observed for any adverse reactions over a specified period.

This step is essential because it ensures the safety and well-being of the client, preventing situations where a harmful reaction could lead to severe itching, burning, or even more serious health issues. It also demonstrates professionalism and thoroughness in providing services, as well as building trust with clients through a commitment to their safety.