Masseter Botox: Slim Your Jawline and Relieve TMJ

What Is Masseter Botox?

Masseter Botox—also called jaw Botox or jawline slimming—involves injecting neuromodulator (Botox, Dysport, or Xeomin) into the masseter muscle, the large muscle responsible for chewing. When relaxed with neuromodulator, the masseter gradually shrinks in size, creating a slimmer, more oval facial contour.

Beyond aesthetics, masseter Botox is also an effective treatment for TMJ (temporomandibular joint) disorder and bruxism (teeth grinding).

What Does Masseter Botox Treat?

• Jaw slimming and facial contouring
• TMJ pain and jaw tension
• Teeth grinding (bruxism)
• Headaches related to jaw clenching

What to Expect During Treatment

Masseter Botox is a quick in-office procedure. Your provider will assess your masseter size and inject small amounts of neuromodulator into each side of the jaw. The appointment typically takes 15–30 minutes with minimal discomfort.

When Will I See Results?

Results from masseter Botox develop gradually. You may notice reduced jaw tension within a few weeks, and visible slimming of the jawline typically appears after 4–6 weeks as the muscle begins to shrink. Full results are often most visible after a second treatment.

How Long Does It Last?

Masseter Botox typically lasts 4–6 months. With repeated treatments, some patients find results lasting longer as the muscle continues to reduce in size.

Is Masseter Botox Right for Me?

Masseter Botox is a great option if you experience jaw pain, clenching, or grinding, or if you'd like a softer, slimmer jawline. A consultation with a Skin Clique provider will help determine the right treatment plan for your goals.