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Experts believe the primary cause is a increase of androgen levels - androgen is a type of hormone. Androgen levels increase when a human becomes a youngster. Increasing androgen levels make the skin oil glands under your skin grow; the increased glandular generates more oil. Extreme oils can break down mobile surfaces in your skin pores, causing viruses to develop known as acne.
Now, the great information is: Pimples are not hazardous.