BOTOX works well for such areas a glabellar folds (between the eyebrows), "crow's feet" (by the side of the eyes), "marionette lines" (by the sides of the mouth), and forehead wrinkles. It can also be used to improve fine and deeper lines in the upper lip, to improve the "downward smile" (the downward drooping of the corners of the mouth that occurs with aging), to improve the "gingival smile" (excessive gum show on smiling) and to improve the creases and folds in the neck.