General Overview
Oily skin is a product of a person's unique genetic makeup. No amount of scrubbing or washing the face will lessen the oil on the skin because the specific genes of a person cause the oil glands inside the skin to produce excess sebum, or oil. Besides genetics there are a few other causes for oily skin including hormonal imbalance, certain cosmetics, pregnancy and the use of birth control pills. Hormonal changes in teenagers and pregnant women can lead to the skin producing extra oil which can lead to acne and an embarrassing shine on the face.
Oily Skin and Pimples
Excess sebum produced by the skin glands often results in pimples, blackheads and whiteheads. The excess oil causes pimples by clogging the pores of the skin, which in turn leads to the pores becoming more susceptible to bacterial infections and inflammations. The clogged pore is unable to function properly and bacteria eventually seeps in and causes the pore to become inflammed, leading to a pimple. Blackheads occur when the oil in the pore hardens, but does not become infected with bacteria. Blackheads can stretch the pore, however, making it look larger.
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