Botulinum toxin A is marketed under the brand names Botox (marketed by Allergan), Dysport (marketed by Galderma), and Xeomin (promoted by Merz Pharma). Botox relaxes and softens overactive facial muscles that bring about wrinkles and contours to kind in between your brow, the edges within your eyes (crow's toes) and with your forehead.A. Period of