Simple, 10-minute injection treatment that can temporarily smooth moderate to severe wrinkles of the forehead, crows feet and face. Results last up to 4 months. Reduces or eliminates: Frown lines Forehead creases Crows feet near the eyes Thick bands in the neck How: The toxin blocks the nerve impulses, temporarily paralyzing the muscles that cause wrinkles while giving the skin a smoother, more refreshed appearance.