Washington Cosmetology License Practice Exam

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What is the term for the natural protective oil found on the skin?

Pore
Collagen
Sebum
Moisturizer

The correct answer is: Sebum

The natural protective oil found on the skin is known as sebum. Sebum is produced by sebaceous glands and plays a crucial role in maintaining the skin's health by providing moisture and protection against environmental damage. It helps to create a barrier that keeps the skin to stay hydrated and prevents the loss of water and essential nutrients. Additionally, sebum has antimicrobial properties, which help protect the skin from bacteria and fungal infections. While pores are openings that allow sebum and sweat to reach the skin's surface, collagen is a structural protein important for skin elasticity and firmness, and moisturizers are products used to hydrate the skin, they do not refer to the natural oil itself. This is why sebum is the correct term for the oil produced by the skin.