Nevada Barber Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Before using chemical treatments on hair, performing a patch test for allergies is critical. This test involves applying a small amount of the chemical product to a discreet area of the skin, usually behind the ear or on the inner elbow, to check for any adverse reactions. This step ensures the safety of the client, as some individuals may have sensitivities or allergies to specific ingredients in the chemical treatment.

Conducting a patch test helps to prevent potential allergic reactions that could result in discomfort, skin irritation, or more severe health issues. This precaution is essential in the professional beauty industry to protect both the client and the stylist, ensuring that chemical services are performed safely and effectively.

While other options may involve steps related to hair care or styling, they do not address the fundamental need to assess any risks associated with the use of chemical products on the hair and scalp.