Allergan, Inc. marked the 10-year anniversary of the FDA approval of Botox Cosmetic (onabotulinumtoxinA) to improve the look of moderate to severe frown lines between the eyebrows in patients age 18-65.In the decade since Botox Cosmetic was approved, aesthetic specialty physicians have performed approximately 11 million treatment sessions with Botox Cosmetic. According to the ASAPS, its survey respondents performed 2,619,739 Botulinum toxin procedures in 2011, making it the most popular nonsurgical cosmetic procedure.