Red Seal Cosmetology Practice Exam

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What is the function of the cuticle in hair?

  1. Color pigmentation

  2. Strengthens hair

  3. Tough exterior layer

  4. Provides moisture

The correct answer is: Tough exterior layer

The cuticle in hair serves as a tough exterior layer, protecting the inner layers of the hair from external damaging factors such as heat, chemicals, and UV rays. Option A, color pigmentation, is incorrect as the cuticle does not affect the color of the hair. Option B, strengthening hair, is not the primary function of the cuticle although it does contribute to the overall strength of the hair. Option D, providing moisture, is also incorrect as the cuticle actually helps to seal in moisture and prevent moisture loss. Therefore, the correct function of the cuticle is to act as a tough exterior layer for the hair.

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