New Jersey State Board Esthetics Exam 2025 – 400 Free Practice Questions to Pass the Exam

The main function of sebum is to protect and lubricate the skin. Sebum is an oily substance produced by sebaceous glands, which helps maintain the skin's moisture balance by providing a barrier that prevents excessive water loss. This lubrication is essential for keeping the skin soft and supple, thereby contributing to overall skin health. Additionally, the protective properties of sebum help shield the skin from environmental factors such as pollutants and bacteria, promoting a healthier complexion.

In contrast, exfoliating the skin involves the removal of dead skin cells and is typically achieved through physical or chemical means, which sebum does not directly perform. Enhancing skin color is more related to pigments and techniques rather than the natural functions of sebum, and while sebum can contribute to a healthy sheen, it does not absorb moisture; rather, its role is to prevent moisture loss. Thus, the protective and lubricating properties of sebum are crucial for maintaining skin integrity and health.