PSI Indiana Esthetician Practice Exam

The sebaceous glands play a crucial role in skin health by producing sebum, an oily substance that serves primarily to moisturize the skin. Sebum helps maintain the skin's natural barrier, preventing dryness and providing a certain level of waterproofing. This moisturizing effect is essential for maintaining skin elasticity and preventing conditions associated with dryness, such as irritation and flaking.

In addition to providing moisture, sebum has antimicrobial properties, which help protect the skin from harmful pathogens. The production of sebum is influenced by various factors, including hormonal changes, which can further affect skin health. Overall, the primary function of these glands is best represented by their role in sebum production, making it vital for optimal skin hydration and maintenance.