What do sebaceous glands secrete?

Sebaceous glands are specialized skin structures responsible for producing and secreting sebum, which is an oily substance that plays a crucial role in maintaining the health of the skin and hair. Sebum serves several important functions, including moisturizing the skin, preventing dryness, and providing a degree of waterproofing. It also has antibacterial properties, helping to protect the skin from infections.

The production of sebum is important for the overall health of the dermis and outer skin layers, and variations in its production can influence conditions like acne. This makes understanding the function of sebaceous glands and the significance of sebum essential in both barbering and broader skincare practices.