West Virginia Cosmetology Board Practice Exam

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When should a patch test be performed when applying hair color?

Only if the client requests it

Every time, regardless of previous applications

When using a new product for the first time

A patch test should be performed when using a new product for the first time because it is a critical safety measure to determine if the client may have an allergic reaction to the specific ingredients in the hair color. Even if a client has had hair color applied previously, the formulations can change, and the client may develop new sensitivities or allergies. Conducting a patch test allows for a safer application process by identifying potential reactions before the full treatment is applied.

This precaution is especially important in the beauty industry, as unforeseen allergic reactions can range from mild irritation to more severe conditions, potentially causing harm to the client. Performing a patch test also aligns with best practices and professional standards within cosmetology to ensure the health and safety of clients.

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Only for clients with sensitive skin

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