This procedure relies on injections of botulinum toxin into the muscles of the face that are responsible for squinting and frowning.  By rendering these muscles inactive, there will be a softening or in some cases elimination of the wrinkles along the forehead, between the eyebrows and at the outer corners of the eyes. (“crow’s feet”)  The results take effect about 48 hours after the injection and last between 3-4 months.  At that time, the Botox injections can be repeated.