According to the American Academy of Dermatology, between 40 and 50 million Americans develop acne each year. Although many associate acne with adolescence, acne can occur at any age, with its causes including heredity, hormones, menstruation, food, and emotional stress.
Those with inflammatory acne should exfoliate with caution as the procedure may make conditions worse and consult a dermatologist before treatment. Some anti-acne creams contain drying agents such as benzoyl peroxide (in concentrations of 2.5 - 10% ).
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