Masseter Botox involves administering a small amount of botulinum toxin into the masseter muscle at your jawline. Rather than fully blocking nerve signals, the injection reduces excessive muscle activity—allowing the muscle to relax without completely halting nerve function. As a result, it can slim a bulky jawline and alleviate issues like grinding or TMJ discomfort. The procedure is quick, requires minimal downtime, and delivers both aesthetic and functional benefits.