This oil is Sebum, during adolescence the amount of sebum produced by your body is greatly increased. Excessive sugar level in ... Normally, sebum empties onto the skins surface to lubricate the skin. Sebaceous glands are distributed mainly on the face and ... These glands produce sebum which is an oily secretion that protects our skin from loss of moisture. ... Hair follicles produce an oil called sebum. If this oil builds up in the clogged pore it becomes infected, and the hair ...