Delaware Cosmetology and Barbering Practice Exam

What should be done prior to performing any chemical service?

1. Wash the hair

2. Conduct a patch test

3. Consult with friends

4. Use a conditioner

The correct answer is: Conduct a patch test

Conducting a patch test before performing any chemical service is crucial to ensure the client's safety and to prevent adverse reactions. A patch test involves applying a small amount of the chemical product to a discrete area of the skin, typically behind the ear or on the inner elbow, and observing the site for any signs of irritation, redness, or allergic reaction over a period of time. This step is fundamental because it helps to identify any potential sensitivities to the chemicals being used, which can vary from client to client. Other practices such as washing the hair or using a conditioner are important steps in the overall service process, but they do not address the specific need to assess a client's individual reaction to the chemical products beforehand. Consulting with friends, while potentially helpful for personal opinions or advice, does not provide the necessary professional assessment required to ensure a safe and effective chemical service. Thus, performing a patch test is the best practice for safeguarding both the client and the service provider.