These myriad, tiny glands are easily blocked by hardened sebum, which creates a blackhead.
For instance, stress may somehow stimulate the growth of nerve fibers near sebaceous glands, which in turn contributes to the increased production of sebum the fatty substance .
Cleaning 'dirty' bills could save the world's treasuries billions Photo by Flickr user squishyray Scientists have found a greener, low-cost way to prolong the life of soiled, worn paper bills that would save the world's treasuries billions. The solution? Literal laundering, or cleaning, of the "dirty" currency. As banknotes exchange hands, an oily, waxy substance secreted by our skin -- known as human sebum -- accumulates on the bill's surface, disintegrating ...
Jan. 9, 2014 - The Online NewsHour
David Archer in Malaysia Star Acne is due to an ...... increase in the sebum production from the glands that line the base of the hair follicles,Prof Archer explains. "There'sa proliferation of propionibacterium acnes located in the hair shaft, ultimately leading to an...