Colorado Esthetician Written Practice Exam

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Prepare for the Colorado Esthetician Written Exam with our comprehensive quiz. Dive into multiple-choice questions and study materials tailored to help you excel. Gain confidence and knowledge as you prepare for your licensure!

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 primary function of sebum on the skin?

Cools the skin
Lubricates the skin
Prevents infection
Provides UV protection

The correct answer is: Cools the skin

Sebum is produced by the sebaceous glands in the skin and its primary function is to lubricate the skin and hair. It helps to keep the skin soft, supple, and hydrated by preventing moisture loss. Sebum also helps to maintain the skin's pH balance and protect it from external factors. While sebum does contribute to the skin's natural defense mechanism, such as preventing infection and providing some level of UV protection, its main purpose is to lubricate the skin.