Written Laser Hair Removal Practice Exam

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Prepare for the Written Laser Hair Removal Exam. Study with flashcards and multiple-choice questions, each question includes hints and explanations. Get ready to succeed on your exam!

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What causes the transformation of vellus hair into terminal hair?

Aging
Hormonal changes
Decrease in melanin
Lack of sunlight

The correct answer is: Hormonal changes

Hormonal changes cause the transformation of vellus hair into terminal hair. During puberty, hormonal fluctuations can stimulate certain hair follicles to convert vellus hairs (fine, light-colored hairs) into terminal hairs (thicker, darker hairs). Hormones such as androgens play a significant role in this process, leading to the development of more noticeable and coarser hair in various body areas. Aging, decrease in melanin, and lack of sunlight do not directly influence this transformation from vellus to terminal hair.