http://www.articleheaven.net en-us editorial@articlealley.com Advance Acne Treatments that Work Acne is caused by increased sebum production. Sebum is produced by sebaceous glands which secrete an oily matter. This results in clogged pores and bacteria. How many people are affected in the U.S.? Millions of Ameri... http://www.articleheaven.net/advance-acne-treatments-that-work-940960.html 17th June 2009