North Dakota Cosmetology Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 410

What precaution should be taken when using chemical relaxers?

Wash hair before application

Perform a strand test

When using chemical relaxers, performing a strand test is a critical precaution to take. This test involves applying the relaxer to a small section of hair to assess how the hair will react to the chemical process. It helps determine the appropriate processing time required for the specific hair type and condition, allowing the stylist to foresee any potential adverse reactions, such as excessive damage or an unexpected change in hair texture.

By conducting a strand test prior to the full application, professionals can ensure the safety and suitability of the relaxer for that client, ultimately leading to better results and minimizing the risk of hair breakage or scalp irritation during the chemical treatment. This practice is essential for achieving optimal results while maintaining the health of the hair.

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Use heat during application

Apply to dry hair

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