A common misconception is that acne only affects teenagers. But more than ever before, adults are suffering with oily and acneic skin conditions. Clinical studies indicate that between 40 and 55 percent of the adult population in the 20-40 age group are diagnosed with a low grade, persistant acne and oily skin. According to the journal of American Academy of Dermatology, 54% of women older than age 25 have some facial acne, which is most likely attributed to hormonal fluctations that trigger excess sebum resulting in acne. Acne arising in adulthood is more likely to be inflammatory, with a fewer comedones than teenage acne, and with lesions predominantly located around the mouth, chin and jaw line. Likewise adults often have sensitised skin, or a combination of skin conditions in addition to their acne, which makes treatment more challenging than treatment of teens who generally have a more resiliant , uniform oily skin condition. In addition, adult cases of acne are more persistant than teenage acne, which can be particularly frustrating for those who were spared outbreaks as teenagers.