Jaw (Masseter) Slimming Treatment: What Is It & What to Expect

A square jawline can give the face a broad, masculine look, which may not be ideal for everyone. An enlarged masseter muscle – the powerful muscle responsible for chewing – is one of the reasons behind this face shape.

Jaw Slimming Injections, is a non-surgical way to achieve a slimmer face shape. By injecting Jaw Slimming treatment into the masseter muscle, this treatment reduces muscle tension, refines the jawline and even relieves jaw pain caused by teeth grinding or temporomandibular joint (TMJ) disorders.

If you’re considering jaw slimming treatment, this guide covers what you need to know – from how it works to its costs, its benefits and what to expect after treatment.

How Do Jaw Slimming Injections Work?

When injected into the masseter, this neurotoxin blocks nerve signals, temporarily weakening the muscle. Over time, the masseter muscles shrink due to inactivity and reduced use.

The jaw-slimming effect happens in stages:

1. Week 1: Jaw Slimming Injections start relaxing the masseter muscles, reducing muscle movements.
2. Weeks 2 to 4: The jaw slimming results gradually become visible as the muscle shrinks.
3. Months 2 to 3: The face shape continues to refine, giving a more contoured look.
4. Months 4 to 6: The effects gradually fade as the nerve signals return, requiring a repeat treatment if desired.

Regular sessions every 4 to 6 months for long-term jaw reduction can further weaken the muscle, leading to more lasting results.

Benefits of Jaw Slimming Treatment (Masseter)

Aesthetic Benefits

Slims a square or wide jawline for a more V-shaped face
Creates a softer, more contoured appearance
Non-surgical alternative to plastic surgery
Quick procedure with no downtime

Medical Benefits

Relieves jaw pain and masseter pain
Reduces instances of teeth grinding and teeth clenching
Helps with temporomandibular joint (TMJ) disorders
Alleviates tension headaches caused by jaw tension
Improves jaw movement and reduces discomfort

How Many Units of Treatment Are Needed for Jaw Slimming?

One of the most common questions about Jaw Slimming Injections is how many units are required to achieve visible jaw slimming. The number of injections needed depends on factors such as masseter muscle size, jaw tension and desired results.

Typical Dosage for Jaw Slimming:

Mild jaw slimming: 20 to 25 units per side
Moderate jaw reduction: 30 to 35 units per side
Significant slimming: 40 to 50 units per side

Men generally require higher doses due to stronger and larger jaw muscles. During the consultation, your doctor will assess the muscle area, facial structure and muscle contractions to determine the appropriate dosage for jaw reduction.

Learn more about Jaw Slimming Injections at AURA.

Who Is a Good Candidate for Jaw Slimming Injections?

Ideal Candidates

People with enlarged masseter muscles causing a square jawline
Those experiencing jaw pain or TMJ issues
Individuals looking for jaw slimming without plastic surgery
Patients with realistic expectations about gradual results

Not Suitable for

Pregnant or breastfeeding individuals
Those with neuromuscular disorders
Individuals allergic to Jaw Slimming Injections
People with unrealistic expectations

Cost of Jaw Slimming Injections

The cost of masseter treatment at AURA Clinic depends on several factors, including:

The dosage of Jaw Slimming Injections needed
The size of your jaw muscles

Find out more at AURA Clinic today for a personalised treatment plan tailored to your needs.

Jaw Slimming Injections Procedure: What to Expect

Getting Jaw Slimming Injections is a quick and minimally invasive treatment that requires no downtime. The entire process – from consultation to injection – usually takes 30 minutes or less. Here’s what to expect at each stage of the procedure.

Consultation and Assessment

Before proceeding with Jaw Slimming Injections treatment, your doctor will assess your facial structure, jaw muscles and overall face shape to determine if it is the right solution for you.

Facial assessment

Your doctor will examine your masseter muscles, checking for enlargement caused by teeth grinding, clenching or genetics.
Discussing goals

You and your doctor will discuss whether you want a slimmer jawline, TMJ pain relief or both.
Understanding dosage

Your practitioner will determine the dosage of Jaw Slimming Injections needed based on your muscle size and desired jaw-slimming results.
Side effects explained

Common Jaw Slimming Injections side effects will be discussed, such as mild bruising, temporary jaw weakness or slight discomfort when chewing.

The Jaw Slimming Injections Process

The injection process is quick, relatively painless and usually takes only 5 to 10 minutes. Here’s how it works:

1. Preparation

The treatment area is cleansed, and a topical numbing cream may be applied to minimise discomfort.
2. Marking the injection sites

The doctor identifies the injection site along the masseter muscles.
3. Jaw slimming treatment is injected

Jaw Slimming treatment is carefully injected into 3 to 5 points per side of the jaw.
4. Post-injection check

The doctor may ask you to move your jaw to ensure the Jaw Slimming treatment is properly placed.

Most patients describe the discomfort level as a small pinch, similar to an insect bite.

Post-Treatment Care and Recovery

To get the best results from your jaw slimming treatment, follow these aftercare instructions:

Avoid touching or massaging the injection site for 24 hours to prevent Jaw Slimming Injections from spreading to unintended areas.
Refrain from strenuous exercise for 24 to 48 hours, as increased blood flow may affect the Jaw Slimming treatment placement.
Skip alcohol and blood-thinning medications (such as aspirin) for 24 hours to minimise bruising.
No facial massages, facials or microdermabrasion for two weeks to prevent Jaw Slimming treatment from migrating.
Limit excessive chewing (e.g., gum or tough foods) for a few days to allow the aw Slimming treatment to settle.

Jaw Slimming Treatment Results: What to Expect Over Time

When Will You See the Results?

Jaw Slimming treatment results don’t appear immediately. The jaw muscles gradually relax and shrink over a few weeks. Here’s the typical timeline:

Week 1: You may notice a slight reduction in jaw tension but no visible slimming yet.
Weeks 2 to 4: The masseter muscles begin to shrink, and jaw slimming results become noticeable.
Months 2 to 3: Maximum slimming is visible, creating a softer, more contoured jawline.
Months 4 to 6: Jaw Slimming treatment gradually wears off, and the masseter muscles regain some strength.

For long-lasting results, patients typically repeat treatments every 4 to 6 months.

Factors Affecting Longevity of Masseter Treatment Results

The duration of your results depends on several factors:

Metabolism

People with faster metabolisms may break down Jaw Slimming treatment more quickly.
Dosage

Higher doses may lead to longer-lasting effects, while lower doses require frequent touch-ups.
Muscle strength

Those with stronger jaw muscles (e.g., frequent teeth grinders) may need more units or more frequent sessions.
Lifestyle habits

Gum chewing, teeth grinding and clenching can cause the masseter muscles to regain size faster.
Consistency of treatments

Over time, repeat treatments can lead to longer-lasting jaw slimming as the muscles become less active.

Alternative Treatments for Jaw Slimming Injections (Masseter Reduction)

While Jaw Slimming treatment is safe and effective, some patients may benefit from alternative or complementary procedures to enhance jawline slimming.

Ultherapy for Jaw Definition

Ultherapy is a non-invasive treatment that uses focused ultrasound energy to tighten skin and enhance jawline definition. It’s ideal for patients who:

Want to reduce sagging along the jawline
Have mild skin laxity that Jaw Slimming treatment alone cannot address
Prefer a non-surgical solution with long-lasting effects

Fillers for Jaw Contouring

Dermal fillers can be used to enhance the jawline’s definition, particularly for patients who:

Want a more sculpted, structured jawline
Need to balance facial proportions after Jaw Slimming treatment
Prefer a temporary, non-surgical enhancement

Jaw Surgery for Permanent Jawline Reduction

For patients seeking a permanent solution, jaw reduction surgery (mandibular angle reduction) may be an option. This surgical procedure involves reshaping the jawbone to reduce jaw width. However, it comes with:

Longer downtime and recovery
Higher risks compared to non-invasive options
Irreversible changes to facial structure

Conclusion

Jaw Slimming treatment is a safe, non-surgical option for both cosmetic jaw slimming and medical relief from jaw pain and teeth grinding. By injecting treatment into the jaw muscles, patients can achieve a slimmer face shape and balanced facial proportions without plastic surgery.

Interested in Jaw Slimming treatment? Book a consultation at AURA Clinic today.