Face Contour | Square jaw / Masseters
If you have a face shape that looks too big at the jaws, it is possible that you have big masseter muscles that is causing your face to look rounder, bigger or too square. You can slim the jawline with a simple injection of Btx (or other neuromodulators) on each side of the jaw. This is face slimming procedure is popularly known as the non surgical square jaw reduction procedure, or the Btx square jaw reduction procedure.
The masseters are two bulky muscles on each side of the angle of your jaw. They serve as muscles of mastication, which means they help you chew. There are two other muscle groups that also perform this function, namely the temporalis muscles and the pterygoid muscles.