What crow's feet are and why they form
Crow's feet form from repeated facial movements such as smiling and squinting, which fold the skin at the outer corner of the eye. Sun exposure, genetics, aging and a loss of skin elasticity all influence how visible these lines remain over time.
Botox works by allowing selective control of muscle movement. For crow's feet, it reduces the concentrated muscle activity at the outer eye corner so the skin folds less and the lines soften.







