New Jersey Barber and Hairstyling Exam 2025 – 400 Free Practice Questions to Pass the Exam

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Which chemical service is used to straighten curly hair permanently?

Glycolic treatment

Keratin treatment

A keratin treatment is a chemical process used to straighten curly hair permanently. This treatment typically involves the application of a keratin-based formula that smooths and straightens the hair by infusing it with keratin, a protein that naturally occurs in hair. The result is sleek, shiny hair with reduced frizz.

Keratin treatments work by temporarily altering the structure of the hair, which can lead to long-lasting straightness but may require touch-ups as the hair grows out. Unlike other options, such as glycolic treatments or vibrancy treatments, keratin treatments specifically target the texture of the hair, providing more control over curls and waves.

Additionally, color correction is focused on changing or fixing incorrect hair color rather than altering the hair's texture. Thus, keratin treatments stand out as the correct choice for achieving a permanent straightening effect on curly hair.

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Vibrancy treatment

Color correction

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