What function do sebaceous glands serve in the skin?

Sebaceous glands play a crucial role in maintaining the health of the skin by secreting sebum, which is an oily substance. Sebum is essential for maintaining the skin's moisture level, providing a barrier against dryness. It also helps to keep the skin and hair lubricated, making them more resilient against damage. Additionally, sebum has antimicrobial properties that can help prevent infections by creating an unfavorable environment for harmful microorganisms.

The secretion of sebum helps to protect the skin's surface and creates a natural barrier that can shield against irritants and environmental stressors. This balanced oil production is vital for preventing conditions such as dryness and acne, demonstrating the important function of sebaceous glands in skin health and overall appearance.