Sebaceous glands secrete sebum, an oily, waxy substance that helps lubricate the skin and hair of mammals. These microscopic glands are found within hair follicles and produce sebum, which is composed of triglycerides, wax esters, squalene, and metabolites of fat-producing cells.
Sebum plays a crucial role in maintaining the health and integrity of the skin. It acts as a natural moisturizer, preventing dryness and cracking, and also provides a protective barrier against environmental factors like bacteria and pollutants.
While sebum is essential for healthy skin, an overproduction can lead to oily skin and acne.
