The Art of Facial Contour.

Botox for Masseter Muscle

What is Botox for the Masseter Muscle?

Botox (onabotulinumtoxinA) is an injectable neuromodulator used to temporarily relax the Masseter muscle—the large, powerful muscle on the side of the jaw that is primarily used for chewing. In some individuals, this muscle can become enlarged (hypertrophied) due to genetics, teeth grinding (bruxism), or excessive chewing.

By injecting Botox into the muscle, its activity is reduced. This leads to a gradual, temporary reduction in muscle size (atrophy), which results in a softer, more V-shaped facial contour and a slimmer jawline. Therapeutically, the treatment also helps reduce the involuntary clenching associated with bruxism and TMJ discomfort.

Who Is This Treatment For?

This treatment is ideal for both aesthetic contouring and therapeutic relief. This treatment is ideal if you want to:

  • Achieve Jawline Slimming: To soften a square, bulky, or overly masculine jawline for a more oval or heart-shaped facial contour.
  • Relieve Bruxism & TMJ Symptoms: To alleviate involuntary teeth clenching (bruxism), jaw tension, and associated headaches or pain from Temporomandibular Joint (TMJ) disorders.
  • Correct Muscle Asymmetry: To balance facial features by treating one masseter muscle that may be larger than the other.
  • Avoid Surgery: For those seeking a non-surgical, minimal-downtime alternative for lower-face contouring.

Slimmer, Softer Jawline

Reduces the bulk of the masseter muscle for a more V-shaped, feminine facial contour. Results look natural—just more refined.

Relief from Teeth Grinding (Bruxism)

Helps relax the jaw to lessen clenching and grinding, especially at night. Wake up with fewer headaches and less jaw tension.

Less Jaw Pain & Facial Tension

Eases tightness in the jaw area that can cause soreness or discomfort when chewing. Feel more comfortable and relaxed throughout the day.

Quick, Non-Surgical, Minimal Downtime

A fast in-clinic treatment with little to no disruption to your routine. Enjoy noticeable improvement without surgery or recovery time.

Clenching & Grinding Relief:

The relaxation of the muscle significantly reduces the force of involuntary clenching, helping to protect teeth from wear, cracking, and erosion caused by bruxism.

Tension Headache Reduction:

Alleviating chronic jaw tension often leads to a reduction in the frequency and intensity of tension-related headaches that originate from the temple or jaw area.

Natural-Looking Results:

Since the slimming occurs due to a reduction in muscle mass, the contouring effect is subtle, gradual, and looks completely natural, complementing the rest of the face.

What to Expect

The treatment is very fast, typically taking about 10 minutes. It involves a few precise injections into the masseter muscle on each side, often guided by feeling the muscle clench.

Onset of Action: The muscle relaxation effect begins within 3–5 days, and clenching relief may be felt early. However, the visible slimming of the jawline takes time, with the full aesthetic contouring result typically visible at 4 to 8 weeks as the muscle atrophies.

Minimal Downtime: There is virtually no downtime. You may experience minor redness or a small feeling of temporary muscle fatigue when chewing tough foods immediately after, but you can return to normal activities right away.

Longevity: Because the reduction is in muscle mass, the effect is long-lasting, typically enduring for 4 to 6 months. To maintain the V-shaped contour, repeat treatment is recommended once the muscle starts to regain bulk.

Before & After

Our Pricing

Questions? Answers.​

No. The masseter is only one of four muscles used for chewing. The treatment will only weaken it enough to reduce its size and force; you will retain full functional ability to chew and speak normally.

You will feel the muscle relaxation within a week, but the visible facial slimming is a gradual process. The earliest noticeable aesthetic change is typically around one month, with the final result at two months.

The dosage varies significantly depending on the size and strength of your masseter muscle, usually ranging from 25 to 50 units per side for cosmetic slimming. A detailed assessment is needed to determine the appropriate dose.

You should avoid rubbing or massaging the treated area for 24 hours. We also advise against strenuous exercise for the rest of the day and avoiding lying down for 4 hours to prevent the product from migrating.

To maintain the contour and therapeutic relief from bruxism, treatment is typically recommended every 4 to 6 months, before the muscle has a chance to return to its original size.

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