Masseter Muscle Prominence research hub

BOTOX® (Botulinum toxin type A) for the Reduction of Masseter Muscle Prominence: A Phase 3, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study

This study looks at how well BOTOX® works to reduce the size of the chewing muscles in the jaw. Researchers want to see if it helps improve the look of the lower face, based on what both doctors and patients observe.