The sebaceous gland secretes sebum. These microscopic glands are located in the skin and are connected to hair follicles. Sebum is an oily substance that helps to lubricate and protect the skin and hair.
Sebaceous glands are holocrine glands, meaning that they secrete their product by the entire cell breaking down and releasing its contents. This process results in the secretion of sebum, which is a mixture of fats, including triglycerides, wax esters, squalene, and cholesterol, as well as cellular debris.
Sebum plays an important role in keeping the skin moist and healthy. It also helps to protect the skin from bacteria and other harmful microorganisms. However, excessive sebum production can lead to acne.
