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Jawline Slimming in London

With the best jawline slimming treatment in London, you can soften your bulky jaw muscles for a more contoured and V-shaped look. Our treatment:

  • Slims a square or wide lower face.
  • Helps ease jaw tension and teeth grinding.
  • Offers natural-looking symmetry with no downtime.
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ratings from 1150+ people

Testimonials

Jawline Slimming at a Glance

30 minutes

Treatment Time

Takes 2-6 weeks to show effect

Results

15- 20 mins
(depends on the individual and treatment plan)

Downtime

Starts from £395
(Varies according to injector & discussed in consultation)

Cost

What is Non-Surgical Jawline Slimming?

Jawline slimming (or masseter reduction) is a quick, non-surgical injection that helps make your lower face look slimmer and more V-shaped. It works by relaxing the chewing muscles at the back of your jaw (masseters), which reduces their size over time, giving your jaw a sleek and slim appearance.

Why Choose Jawline Slimming?

You may choose masseter Botox if you have:
    • An undefined or softer jawline.
    • A wide, fuller, or square jaw.
    • Jaw clenching or tension.
    • Asymmetry in the lower face.
    • Headaches related to jaw tension.
If you have any of the concerns mentioned above, consult with our experts at AMS Aesthetics and discuss your goals. And let them guide what’s best for you.

How does Masseter Reduction Slim the Jawline?

Here’s how masseter reduction works:
  1. Targeted Injections: A small amount of muscle-relaxing product is injected into each side of the jaw to gradually weaken the muscle.
  2. Masseter Relaxation & Slimming Effect: As the muscle relaxes over the next 2–6 weeks, it reduces in size, resulting in a softer, more contoured jawline.
  3. Added Benefits: The treatment can also ease symptoms of teeth grinding and jaw tension, providing both cosmetic and functional benefits.

Jawline Slimming Before and After

View the excellent masseter Botox before and after results from AMS Aesthetics.

The Best Jawline Slimming Experience in London

Say goodbye to bulky jawlines and hello to refined definition with our expert-led jawline slimming treatment in London at AMS Aesthetics. 

Designed to suit your needs, this treatment helps create a slimmer, more balanced profile while also offering relief from jaw tension or clenching. 

With precision and care, we deliver results that look natural, feel comfortable, and leave you confident from every angle.

Mr AMS Talks Non-Surgical Jawline Slimming

Gain expert insight into how this quick procedure helps contour your face and reduce jaw tension, without the need for surgery.

Benefits of Jaw Slimming

Slims a square or bulky jawline for a softer, more contoured look.

Creates a V-shaped facial appearance without surgery.

Reduces overactive masseter muscles that cause jaw heaviness

Helps relieve jaw tension, clenching, and teeth grinding.

Natural-looking results that develop gradually over a few weeks.

Quick treatment with no downtime & results lasting 3-4 months.

Jawline Slimming Procedure

Pre-Treatment Consultation

At AMS Aesthetics, your jaw slimming procedure begins with a consultation. Your practitioner will assess your jaw and feel for the size and strength of your masseter muscles. This helps map out where the injections should go.

Preparation

The treatment areas are cleaned, and injection points may be marked. A topical numbing cream can be applied to keep you comfortable.

Application

Small amounts of muscle-relaxing products are injected into each side of the jaw, usually 2–3 injections per masseter muscle.

Aftercare

You can return to work or normal activities right away, but to get the best results and avoid side effects, avoid the following for the rest of the day:
  • Touching or rubbing the treated area.
  • Lying down flat.
  • Exercising.
  • Bending or leaning forward.
  • Taking painkillers (unless advised).
  • Drinking alcohol.

Jaw Slimming Cost

The masseter reduction for jawline slimming costs £395 at AMS Aesthetics in London.
Please note that the price varies by the practitioner and is discussed in the pre-treatment consultation.

Starts from

£395

Downsides of Masseter Reduction

  • Temporary side effects: Mild bruising, swelling, or tenderness at the injection site.
  • Weak chewing: You may notice reduced bite strength, especially when chewing tough foods.
  • Asymmetry: If the product spreads unevenly, results can appear imbalanced (though rare with skilled injectors).
  • Not permanent: You may need a top-up after 4–6 months.
“Consulting a skilled and medically qualified injector helps reduce the risks associated with jawline slimming treatments.”

A Slimmer Jawline without any Jaw Heaviness or Clenching!

With the best Jawline Slimming Clinic in London!

FAQs About Jawline Slimming

How does jawline slimming work?

It works by injecting a muscle relaxant into the masseter muscles. Over time, the muscles shrink, resulting in a slimmer, more contoured jawline.

Is the treatment painful?

Most people describe it as more of a quick pinch than actual pain. A numbing cream is typically applied beforehand to make the procedure more comfortable.

How long do the results last?

Typically 4–6 months. With regular sessions, results may last longer over time as the muscle continues to shrink.

Will I be able to chew and smile normally after a jawline slimming treatment?

You’ll still be able to smile and eat normally. Some individuals may notice slightly weaker chewing at first, but this is a temporary and mild effect.

How soon will I see results?

Results are gradual. Most people start noticing a softer jawline in about 3–4 weeks, with full results visible by 6 weeks.

Is jaw slimming only for cosmetic purposes?

No, it’s also used to relieve tension from jaw clenching or teeth grinding (bruxism), and even reduce related headaches.

Is the treatment permanent?

No, it’s temporary. The muscle will slowly regain its size if you don’t maintain the treatment every few months.

Who is a good candidate for jaw slimming?

Anyone bothered by a wide jawline due to strong masseter muscles, or those dealing with jaw tension or clenching.

Who should avoid it?

Pregnant or breastfeeding women, those with certain neuromuscular conditions, or people allergic to the injection ingredients should avoid this treatment.

MEET OUR Team

Saavan Nathwani's Picture

Saavan Nathwani

MPharm, IP

Daniella Kay

Clinic Manager

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Charine Patel
MPharm, IP

With a huge passion for skincare and dermatology, Charine combines her level 7 qualifications in injectables for Aesthetic Medicine with tailored treatments for all her clients. With a professional but fun outlook on life Charine is always popular in clinic – popular and approachable and with her own unique way of delivering confidence to all who spend time with her.

Daniella Kay
Clinic Manager
As the Clinic Manager of AMS Aesthetics, I embody the seamless fusion of luxury service and operational excellence. With an MBA and a specialisation in Project Management, I lead the clinic’s day-to-day operations with a strategic focus on patient care, front-of-house experience, and clinical compliance. From the moment a patient steps through our doors, I ensure their journey is delivered with elegance, discretion, and the high-touch service that defines the AMS standard. My commitment lies in creating a refined, results-driven environment where every detail is meticulously managed to reflect the calibre of our brand.
Saavan Nathwani's Picture
Saavan Nathwani
MPharm, IP
Saav is always on the lookout to bring the ‘feel good’ factor to all his clients, using his Level 7 diploma in Injectables and passion for skin health. He tailors a skincare journey for optimum results and you’re sure to have a relaxing treatment with Saav who wants you to enjoy some time to escape from the pressures of modern life.