BOTOX Cosmetic is the first and only FDA approved product to temporarily improve both moderate to severe from lines between the brows and crow's feet lines around the sides of the eyes. BOTOX Cosmetic targets one of the underlying causes of frown lines and crows feet-- the repeated muscle contractions from frowning and squinting over the years. The doctor will inject these muscles with BOTOX to temporarily reduce muscle activity. You'll begin to notice a visible smoothing of these lines.