Researchers from the San Gallicano Dermatological Institute in Rome found that cigarettes can cause acne as well as cause dull and wrinkled skin. They found that noninflammatory acne affected eight times more smokers than nonsmokers. Most of the nonsmokers that had acne lived or worked in environments with heavy smoke. Cigarette smoke can cause skin cells, called keratinocytes, to proliferate and clog pores.

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