Where do sebaceous glands secrete sebum?

Sebaceous glands primarily secrete sebum into hair follicles. This secretion process is crucial for maintaining healthy skin, as sebum acts as a natural moisturizer, helping to keep the skin's surface lubricated and providing a barrier against environmental factors. The hair follicles serve as the conduit for this oily substance to reach the skin, where it can then spread and fulfill its protective and hydrating roles. This relationship between sebaceous glands and hair follicles highlights the interconnected nature of skin structure, emphasizing the importance of these glands in skin health and appearance.