When you inject just the glabellar muscle when you do just the 11s, your patients may seem astonished, guilty, or frightened after the injections have been administered. That’s because the antagonist muscle, the muscle that opposes the muscles of the elevens, is the corrugator or frontalis muscle.<\/p>\n
In the event that someone has a particularly strong frontalis muscle, which is responsible for lifting the patient’s eyebrows, and you relax the muscle responsible for lowering the patient’s brow, the patient will look like they’ve been scared.<\/p>\n
Remember that when you perform the elevens on a person’s face, you may additionally need to perform two injection sites on the forehead to offset the relaxation of the corrugator muscles.<\/p>\n