Xeomin® vs. Botox® A Side-by-Side Comparison in the Same Patients.

INTRODUCTION: Marketing disinformation has confused physicians about the comparative safety and efficacy of Botox® and Xeomin®. Comparative studies to date were in different patients. Variations of onset and duration are significant in different patients using the same product. Thus comparing the two products is not reliable. In this study, Xeomin® was injected in one side of the forehead and Botox® was injected on the other side in the same patients. By eliminating the patient variable, a true comparison was possible.