Masseter Botox for Jaw/Face Slimming

A wide or square jawline can sometimes create a heavier facial appearance. At Private Medical Clinic, our Masseter Botox treatment offers a safe and effective way to slim and contour the lower face. By carefully relaxing the masseter muscle, we can achieve a softer, more refined facial shape while also helping with teeth grinding and jaw tension.
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What is Masseter Botox?

The masseter muscle is a strong chewing muscle that can become enlarged due to constant use, teeth grinding (bruxism), or genetic factors. This enlargement often leads to a wider, more masculine-looking jawline.

Masseter Botox treatment involves precise injections of botulinum toxin into the muscle. This temporarily reduces its activity, allowing the muscle to relax and gradually slim down. The result is a more tapered, balanced jawline and a smoother lower face.

This procedure is also known as:
  • Masseter muscle Botox
  • Face slimming Botox
  • Jawline slimming Botox
  • V-line Botox
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What Can Masseter Botox Treat?

Masseter Botox is a versatile treatment that provides both cosmetic and medical benefits:

Jawline slimming – Reduces the bulk of the masseter muscle to create a softer, more feminine or balanced jawline.
Face slimming with Botox – Improves facial proportions, creating an elegant V-shaped lower face.
Teeth grinding (bruxism) – Relaxes overactive chewing muscles, reducing grinding and clenching.
TMJ disorder symptoms – Relieves jaw tension, headaches, and facial pain caused by overactive jaw muscles.
Improved facial harmony – Balances lower face structure to better match natural facial proportions.
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Benefits of Masseter Botox

Many patients choose this treatment for both cosmetic and medical reasons. Benefits include:
  • Facial slimming and contouring – Achieve a softer, more oval-shaped face.
  • Jawline refinement – Reduce the square or bulky look caused by enlarged masseter muscles.
  • Relief from teeth grinding (bruxism) – Reduce jaw tension, clenching, and associated headaches.
  • Non-surgical solution – Avoid the risks and downtime of invasive jaw surgery.
  • Quick and comfortable treatment – Typically takes 15–20 minutes, with no recovery time needed.

Why Choose Us for Masseter Botox Treatment?

At Private Medical Clinic, patient care is our highest priority. When you choose us for Masseter Botox treatment, you benefit from:
Experienced Specialists – Our doctors are highly trained in advanced facial aesthetics, with expertise in jawline contouring and face slimming with Botox.
CQC-Regulated Clinics – Ensuring the highest safety and quality standards across all of our UK locations.
Tailored Treatments – Every patient receives a bespoke plan designed around their facial structure and personal goals.
Medical Expertise – Treatments are always carried out by qualified medical professionals, not beauticians.
Trusted Results – Our patients consistently report improvements in both confidence and comfort.
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How Much Does Masseter Botox Cost?

Simple, transparent pricing with no hidden fees

Quick & Convenient Appointments

Treatment takes just 10–15 minutes with no downtime, meaning you can return to work or daily activities immediately after your appointment.

Expert Doctor-Led Treatment

All injections are carried out by GMC-registered doctors in CQC-accredited clinics. You’ll receive safe, professional care with results tailored to your unique facial structure.

Free 2-Week Review

We offer a complimentary follow-up after two weeks to ensure your results are exactly as expected, with adjustments if required.

Masseter Botox

Consultation
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Masseter Botox (Face Slimming)
From £395
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Our Masseter Botox Process

1. Consultation

One of our medical practitioners will assess your jawline, discuss your goals, and ensure you are a suitable candidate.

2. Treatment

Small amounts of Botox are injected directly into each side of the masseter muscle. The procedure is quick, with minimal discomfort, and numbing cream is usually not required.

3. Recovery & Aftercare

You can return to normal activities immediately. Mild redness, swelling, or tenderness may appear but typically subsides within 24 hours.

  • Avoid touching or massaging the treated area for at least 6 hours.
  • Refrain from strenuous exercise, alcohol, or saunas for 24 hours.
  • Do not apply makeup until the following day to reduce risk of irritation.
  • Results develop gradually over 2–4 weeks, with maximum slimming visible around 6 weeks.
4. Results

slimming effects typically appear within 2–4 weeks, with optimal results visible by 6 weeks. Results last 4–6 months and can be maintained with regular top-up treatments.

Frequently Asked Questions

How long does masseter Botox last?

Results typically last 4–6 months. With repeat treatments, the slimming effect often becomes longer-lasting.

Will I still be able to chew normally?

Yes. Chewing and speaking remain unaffected. In rare cases, chewing very tough foods may feel tiring for a few weeks, but this resolves naturally.

Is the treatment reversible?

Yes. Masseter Botox is temporary, and the muscle activity will gradually return to its original level after several months if not maintained.

What are the possible side effects?

Temporary redness, swelling, or mild bruising may occur but usually resolve quickly. Rarely, patients may notice mild chewing fatigue, which is temporary.

Is it safe?

Yes. Botox is a well-researched and widely used treatment. When administered by qualified medical professionals, it carries very low risk. At Private Medical Clinic, all treatments are doctor-led and carried out in CQC-registered settings.

How should I prepare for treatment?

Avoid alcohol and strenuous exercise for 24 hours beforehand. Arrive without makeup in the treatment area.

Who is Suitable for Masseter Botox?

You may benefit from this treatment if you:

  • Have a wide or square jawline caused by enlarged masseter muscles.
  • Grind your teeth or clench your jaw, leading to headaches or discomfort.
  • Want a non-surgical face slimming Botox option with minimal downtime.

During your consultation, we will confirm whether masseter Botox is right for you. If your jawline shape is due to bone structure rather than muscle, other options may be recommended.

How quickly will I see results?

Initial changes appear within 2–4 weeks, with maximum jawline slimming seen around 6 weeks after treatment.

Is masseter Botox painful?

Most patients describe only a brief stinging sensation during injections. The treatment is very well tolerated and does not require anaesthetic.

Can men have masseter Botox?

Yes. While many women choose the treatment for facial slimming, men often benefit from reduced jaw clenching and relief from teeth grinding, even if slimming is not the main goal.

How many treatments will I need?

Most patients see results after a single session. To maintain a slimmer jawline, we recommend top-up treatments every 4–6 months.

Who should not have masseter Botox?

Patients who are pregnant, breastfeeding, or with certain neurological conditions (such as myasthenia gravis) are not suitable. A full medical history will be taken to ensure safety.

What aftercare should I follow?

Avoid rubbing the treated area, heavy exercise, and saunas for 24 hours. Do not apply makeup until the following day to reduce the risk of irritation.
Meet The Team

Experienced and compassionate medical professionals

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Dr Simon Khela

Dr Simon Khela

Consultant Private GP and Medical Director
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Dr Jayawardena

Dr Teresha Jayawardena

GP with Specialist Interest in Women’s and Sexual Health
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Dr Hanoman-Singh

Dr Sabina Hanoman-Singh

GP with Specialist Interest in Aesthetic Medicine
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Dr Sonia Khorana

Dr Sonia Khorana

GP with Specialist Interest in Dermatology & Aesthetics
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Dr Shivani Lal

Dr Shivani Lal

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Dr Ibrahim Mutlib

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Dr Anuveer Mann

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Beth Walker

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Dr Laraib Malick

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Dr Kishan Dattani

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Dr Kaley Ainsworth

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Dr Fatemeh Zamzam Ziaei

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Dr Sahil Soni

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