Colorado Esthetician Written Practice Exam

Question: 1 / 400

What is the primary function of sebum on the skin?

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.

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Lubricates the skin

Prevents infection

Provides UV protection

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