the present invention uses pharmaceutical preparations of botulinum toxin to induce neurogenic atrophy to alter muscle volume and subsequently , facial contour . reduction in lip volume is accomplished using the disclosed methods thereby producing a favorable effect on a hypervolemic lip deformity . in other embodiments of the invention , the methods disclosed herein may be used to shrink muscle bulk and contour , especially in the face . in one embodiment , treating excessive muscle bulk below the eyelids can cause a smoothing of the lower lid and cheek contour producing a favorable improvement in appearance . such an application is in distinct contrast to rhytide as the injected region does not contain wrinkles or any other form of dynamic line , merely excessive tissue bulk .