Delaware Cosmetology and Barbering Practice Exam

Before performing a chemical service, it is essential to conduct a client consultation and a patch test. The client consultation allows the professional to gather vital information about the client's hair type, previous chemical treatments, and any preferences or concerns they might have regarding the service. This step is crucial for ensuring that the treatment is suitable for the client's specific hair condition and lifestyle.

Conducting a patch test, or allergy test, is equally important as it determines whether the client has any sensitivities or allergies to the chemicals being used. This precaution helps prevent adverse reactions or irritation that could result from the chemical products. Both the consultation and patch test work in tandem to promote safety and satisfaction in the service being provided.

The other options do not encompass the safety and thorough understanding necessary before proceeding with a chemical service. While an allergy test is important, it is not sufficient on its own without the broader context provided by a client consultation. A haircut and observing the client's hair color might be part of the overall service but do not address the essential safety measures required prior to performing chemical treatments.