Written Laser Hair Removal Practice Exam

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Ace your laser hair removal certification with our comprehensive practice exam. Featuring multiple-choice questions, detailed explanations, and hints, get the preparation you need to ensure success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the main function of melanin?

To cool the body
To produce vitamin D
To protect skin from UV radiation
To regulate hair growth

The correct answer is: To protect skin from UV radiation

Melanin is a pigment that gives color to our hair, skin and eyes. Its main function is to protect the skin from the harmful effects of UV radiation, such as sunburn and skin cancer. Melanin can absorb UV rays and prevent them from damaging skin cells. Option A is incorrect because skin temperature regulation is primarily maintained by sweat and blood flow. Option B is incorrect because melanin does not play a direct role in vitamin D production. Option D is incorrect because melanin does not affect hair growth; hair color is determined by the type and amount of melanin present. Therefore, the main function of melanin is to protect skin from UV radiation.