New York State Cosmetology Practice Exam 2025 - Free Cosmetology Practice Questions and Study Guide

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What is the main purpose of a patch test in cosmetology?

To determine hair texture

To check for allergic reactions

The main purpose of a patch test in cosmetology is to check for allergic reactions. This procedure is essential when using chemical products, such as hair dyes or skin treatments, as it helps to ensure that clients do not have an adverse reaction to the substances being applied. By conducting a patch test, cosmetologists can safely assess the client's skin sensitivity to specific ingredients, which minimizes the risk of allergic reactions that could lead to significant discomfort or harm.

In the context of cosmetic services, understanding and preventing allergic reactions is critical for the safety and well-being of clients, and is a fundamental aspect of professional practice in the cosmetic industry.

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To identify hair color preference

To evaluate the effectiveness of a treatment

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