Depth of Botulinum Neurotoxin Injection for Treatment of Glabellar Lines

One time administration of onabotulinumtoxinA to the corrugator supercilii muscles bilaterally. Dosing dependent on the baseline mass and volume of subject's glabellar muscles as assessed by trained cosmetic dermatologist, accounting for symmetry/asymmetry of the face and can range from 10-50 units. Will be administered at a depth of 2mm

One time administration of onabotulinumtoxinA to the corrugator supercilii muscles bilaterally. Dosing dependent on the baseline mass and volume of subject's glabellar muscles as assessed by trained cosmetic dermatologist, accounting for symmetry/asymmetry of the face and can range from 10-50 units. Will be administered at a depth of 4mm