Xeomin (incobotulinumtoxinA) is the newest and purest form of BotulinumtoxinA. Xeomin doesn’t have any complex proteins so the patient is receiving the pure form of the medication. This is proven effective to improve the appearance of moderate to severe frown lines between the eyebrows. When clinical trials were conducted, treatment success was higher with Xeomin than Botox. Xeomin received FDA approval in 2011. The patient can expect to see visible smoothing 3-4 days after injection. The average duration of results is up to 3 months.