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Surrey Clinic

16 Bell St, Reigate, Surrey RH2 7BG

Harpenden Clinic

103 Luton Rd, Harpenden AL5 3BB

Opening Hours

Mon - Wed: 9am - 5pm

Thur: 9am - 8pm

Fri: 9am - 5pm

Sat: Fortnightly

Sun: Closed

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Jawline Slimming Masseter Treatment

Jawline slimming, also known as masseter reduction for cosmetic purposes, involves injecting botulinum toxin type A into the masseter muscles using exceptionally thin needles, often referred to as “invisible needles.” This procedure aims to reduce the size of the masseter muscles, resulting in a more streamlined and slimmer jawline.

How It Works

By relaxing the masseter muscles, they gradually reduce in size, similar to how muscles shrink when not exercised regularly. As the muscle bulk and tension decrease, the bulkiness or “squareness” of the jawline also diminishes, resulting in a more delicate and traditionally feminine contour. This treatment not only targets the muscles in your jaw but also relieves any tension you may have been holding in this area and may prevent teeth grinding.

Jawline Slimming, Teeth Grinding, and Jaw Clenching

Following the pandemic lockdowns, dentists have reported an increase in cases of bruxism—where patients grind their teeth and clench their jaws. This stress response has become more widespread due to the challenges presented by COVID-19, with many individuals unconsciously grinding their teeth or clenching their jaws, often during sleep. This can lead to:
  • Dental Damage: Wear and tear on teeth, which can be painful and costly to repair.
  • Premature Aging: Decrease in the height of the lower face over time.
  • Jawline Changes: Bulking up of the masseter muscles, resulting in a squarer jawline.
Jawline slimming treatments can improve the cosmetic appearance of the jaw and provide relief from these physical symptoms. However, managing underlying stress and consulting with a dentist or GP is advised if you are concerned.

Ideal Candidates

  • Individuals looking to reduce a square or bulky jawline.
  • Those experiencing teeth grinding or jaw clenching.
  • Patients seeking a more traditionally feminine jawline contour.

Key Benefits

  • Enhanced Jawline Contour: Achieve a slimmer and more balanced jawline.
  • Relief from Bruxism: Helps reduce teeth grinding and jaw clenching.
  • Non-Invasive: Minimal discomfort with no downtime.
  • Natural-Looking Results: Subtle changes enhancing your natural beauty.

What the Treatment Involves

Before Treatment

  • Consultation: A thorough consultation with our medical professionals to discuss your medical history, expectations, and suitability for the treatment.
  • Preparation: No specific preparation is required, but it’s advisable to discuss any concerns or questions with your practitioner beforehand.


  • Procedure: The treatment involves injecting botulinum toxin type A into the masseter muscles using fine needles.
  • Duration: The procedure is quick, typically taking about 15-30 minutes.
  • Pain: Minimal discomfort due to the use of “invisible needles.”


  • Immediate Aftercare: Avoid touching, rubbing, or massaging the treated area for at least 24 hours.
  • General Care: Maintain a normal skincare routine but avoid strenuous activities that may strain the jaw muscles.
  • Follow-Up: Schedule a follow-up appointment to monitor progress and address any concerns.


  • Pregnancy or breastfeeding.
  • Known allergies to botulinum toxin type A.
  • Existing neuromuscular disorders.

Neferti Neck Lift

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Slimming Jawline

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Considering Jawline Slimming?

If you are thinking about jaw slimming contact the Harley Street Clinic Harpenden and Surrey team specialists today. We provide results driven treatments with exceptional patient care, ensuring your peace of mind throughout. We have over 20 years of experience and are a trusted clinic known for delivering outstanding patient satisfaction.

Embrace a more refined and balanced jawline with our expert jaw slimming treatments. Contact us today to schedule your FREE consultation and take the first step towards achieving the look you desire. Call us on 01737 930400.