Illinois Cosmetology Practice Exam 2026 – All-in-One Guide to Master Your Licensing Test!

Question: 1 / 400

What is the primary function of a relaxer in hair treatment?

To enhance curls

To straighten hair

The primary function of a relaxer in hair treatment is to straighten hair. Relaxers are specifically formulated chemical treatments that alter the structure of curly or wavy hair, making it smoother and straighter. This process typically involves breaking down the disulfide bonds in the hair, which are responsible for its natural curl pattern. Once these bonds are broken, the hair can be reshaped, leading to a sleek, straight appearance.

When performing hair relaxer treatments, it is crucial for cosmetologists to understand hair types and the appropriate application techniques to achieve desired results while minimizing potential damage. The other options, such as enhancing curls, adding volume, or changing hair color, refer to different hair treatments and processes that serve distinct purposes and do not involve straightening the hair.

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To add volume

To change hair color

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