Written Laser Hair Removal Practice Exam 2025 - Free Laser Hair Removal Practice Questions and Study Guide

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Which of the following is NOT a function of hair?

Protection from physical damage

Vitamin D synthesis

Hair serves various functions in the human body, such as protection from physical damage, sensory perception, and regulation of body temperature. However, hair itself does not directly participate in the synthesis of vitamin D. Instead, vitamin D synthesis occurs as a result of the interaction of sunlight with the skin. Therefore, option B is the correct answer as it does not align with the functions of hair.

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Sensory perception

Regulation of body temperature

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