What do sebaceous glands do?

Sebaceous glands produce an oil called sebum, which is thought to play a role in keeping your skin moist. Sebaceous glands are located next to individual hairs in sebaceous follicles. The hormones that cause body changes at puberty also cause the sebaceous glands to produce more oil. If this oil mixes with dead skin cells and blocks a pore, it can produce a pimple.
Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Sebaceous glands produce oil called sebum that moves up hair follicles to the surface of the skin, where the oil lubricates skin and hair. The gland may keep producing oil when the opening is blocked, leading to a pimple. Watch the animation to learn more about sebaceous glands.

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