Jawline Slimming London | Masseter Treatment for Slimming & Grinding

A doctor-led treatment that relaxes the jaw muscle to slim the lower face and ease teeth grinding, clenching, and jaw tension.

Masseter Treatment

£

375

Jawline slimming and relief from grinding and clenching

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Administered only by GMC-registered doctors

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100+ five star reviews

Masseter treatment relaxes the large chewing muscle at the angle of the jaw, with two clear benefits. For many clients it slims a wide or square lower face into a softer, more balanced contour over time. For others, the value is functional: it eases the teeth grinding, clenching, and jaw tension that the masseter muscle drives, often most noticeably at night.

Because the change comes from gently reducing how hard the muscle works, the result is gradual and natural rather than sudden. It suits anyone bothered by jaw width, grinding, or clenching who wants a non-surgical option. At Āatma Aesthetics London, every treatment is administered by a GMC-registered doctor inside our CQC-registered clinic at The O2, Greenwich.

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The Approach

A Slimmer Jaw, Less Tension

Good masseter treatment starts with assessment. Dr Shaan examines how strongly the muscle contracts when you clench, then tailors the dose and placement to the size and strength of your jaw rather than using a fixed amount. This is what protects your natural chewing and expression while still delivering the slimming and relief you want.

The change builds gradually. Relief from grinding and clenching often comes within the first couple of weeks, while the slimming effect develops over the following weeks as the muscle settles.

Slims the jawline by easing an overactive muscle

Relieves grinding, clenching, and jaw tension

Gradual, natural change over several weeks

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How masseter treatment works

Ease the Muscle, Soften the Jaw

The masseter is one of the strongest muscles in the body, working every time you chew, clench, or grind. In some people it is naturally large or overactive, which widens the lower face and drives jaw tension and grinding. Masseter treatment uses a prescription medicine that temporarily reduces the muscle's activity, so it works less forcefully.

With the muscle contracting less, clenching and grinding ease, and over the following weeks the muscle gradually reduces in bulk, softening and slimming the jawline. The effect is subtle and develops over time rather than appearing overnight, and your ability to eat and speak normally is preserved.

Treatment is administered by Dr Shaan Patel at our doctor-led clinic inside The O2 in London.

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Treatment length

15-20 mins

Results seen

2-8 weeks

Duration of results

4-6 months

Session frequency

Every 4-6 months

Is Masseter Treatment Right for You?

Masseter treatment is ideal for:

-A wide or square lower face caused by an enlarged jaw muscle

-Teeth grinding, often worse at night

-Jaw clenching and the tension or headaches it can cause

-Jaw ache or tightness from an overactive muscle

-Wanting a softer, slimmer jawline without surgery

Not the right starting point if your jaw width comes mainly from bone structure rather than muscle, or if your concern is volume loss or skin laxity. Dr Shaan will assess this for you at consultation and advise the right option.

Meet Dr Shaan Patel

Dr Shaan founded Āatma after years of medical training at the University of Southampton and clinical experience across hospitals in the UK and Australia. That foundation shapes how he practises aesthetic medicine: methodical, anatomically led, and conservative.

His approach is built on a simple rule - treat what's in front of you, not what's in fashion. That means honest consultations, treatment plans that prioritise long-term face shape over short-term fixes, and a willingness to say "no, not yet" or "no, not this" when it's the right answer.

"My goal is to keep you looking like you - naturally refreshed, never overdone."

Dr Shaan Patel

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Experience the

Āatma Difference

Doctor-Led, Always

Every treatment at Āatma is performed by a GMC-registered medical doctor. Anatomical knowledge, medical judgement, and clinical accountability - never a quick treatment by someone who learnt on a weekend course.

Natural Results That Age With You

Treatments designed to enhance your features, not change them. We plan around long-term facial structure, not short-term trends - so your face still looks like you in five years, just better.

Conservative Treatment Planning

We won't always recommend the maximum protocol. After consultation, you'll receive a plan built around what your skin actually needs - sometimes that's fewer sessions, sometimes none yet. Honest care above upsell.

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Testimonials

What Clients Say About Their Results

    
 
 
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   Sara A 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had a lovely Fire and Ice facial at Aatma aesthetics. So relaxing, and the therapist talked me through every step. The clinic is beautifully presented. Will definitely be back!
  
 
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   Shruti Karve 
 
 
 
 Trustindex verifies that the original source of the review is Google. Suitable services available!!!
  
 
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   Daniel Moffatt 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dr Shaan and his team are absolutely amazing, every time I have been to the clinic, they have been so welcoming and professional, I would definitely recommend this clinic, even if you feel nervous, they go that extra mile to make you feel totally relaxed. Go for it! And thank you. Dan 🤩🤩🤩🤩🤩
  
 
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   linda Collaguazo 
 
 
 
 Trustindex verifies that the original source of the review is Google. aesthetic treatment, and I couldn't be more impressed. As a 50-year-old woman new to injections, I was nervous, but Dr Shaan made me feel completely at ease. He explained the Sculptra procedure in detail and kept checking in to ensure I was comfortable throughout.He also gave me a kind discount on Botox, which smoothed my forehead lines beautifully and looks completely natural. After the treatment, my skin looks brighter, my pores are tightened, and I feel refreshed and more vibrant. I highly recommend Dr. Shaan ! I’m already looking forward to my next visit!
  
 
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   S 
 
 
 
 Trustindex verifies that the original source of the review is Google. Always great facials at Aatma, thank you Dr Shaan and Kelly!
  
 
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   Tarryn Gee 
 
 
 
 Trustindex verifies that the original source of the review is Google. Lovely clinic, with a very modern and clean interior. Easily accessible via transport. Dr. Shaan is kind, professional and passionate about skin health in our consultation. I’m looking forward to organising my first facial.
  
 
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   Anna Lenartowicz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dr Shaan is very knowledgeable, patient and always listens to my concerns. He is all about enhancing natural beauty and I’m very pleased that I found Aatma Aesthetics to help me look my best.
  
 
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   Veronika Lenkiewicz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had a great experience Aatma Aesthetics last week. Dr. Shaan and his team were super friendly and incredibly knowledgeable. Immediately made me feel welcome. I had the fire and ice facial. Highly recommend. We discussed my skin type prior, to ensure my skin didn’t react poorly. The facial was quite a relaxing experience. My skin felt amazing after but truly in the next couple days I noticed my skin was glowing and more even! Thank you so much to everyone at Aatma Aesthetics!
  
 
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   Rebekah 
 
 
 
 Trustindex verifies that the original source of the review is Google. My visit to Aatma Aesthetics was absolutely superb, I couldn’t recommend it enough. I was immediately made to feel very welcome and find Dr Shaan and his team to be incredibly personable and knowledgable. Whilst getting my Fire and Ice Facial I was kept informed throughout with what to expect with each step, as well as what the different products aimed to achieve. Not only was the treatment itself incredibly relaxing, but the results were fantastic. This facial made my skin glow in a way I didn’t even think it was capable of, I was genuinely shocked. I also really appreciated the bespoke advice and recommendations that followed. In the end I walked away with radiant skin, a better understanding of how to manage it, and a clinic I can rely on in the future for high quality treatment. In summary: a brilliant experience from beginning to end, I already can’t wait to go back!
  
 
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   Soha Muir 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Shan is a lovely man, very knowledgable  and skilled. I learned a lot about the products being used. I have been doing fillers for a few years now but this was the most painless process I’ve ever experienced in a normally painful treatment area (lips) - also next to no swelling or bruising which I’m usually quite prone to. This is definitely my regular spot now. Highly recommend!

FAQ

Got questions?
We’ve got answers

Will masseter treatment affect my chewing or smile?

No. The dose is tailored to reduce excessive muscle activity, not to stop the muscle working. You will still be able to chew, speak, and smile normally. The aim is to ease an overactive muscle, not to disable it.

How soon will I see a difference?

Relief from grinding and clenching often appears within the first couple of weeks. The slimming effect on the jawline is more gradual and usually develops over six to eight weeks as the muscle settles and reduces in bulk.

How long does it last?

Results typically last four to six months. With repeated treatment the muscle tends to reduce over time, so many clients find they need treatment less often and the slimming effect becomes more lasting.

How is this different from jawline filler?

They do opposite jobs. Masseter treatment slims a jaw that looks wide because of muscle, by easing that muscle. Jawline filler adds definition and structure to a jaw that lacks it. Some clients benefit from one, some from a combination, and Dr Shaan will advise what suits your face at consultation.

Does it help with teeth grinding and jaw pain?

Yes, this is one of the most common reasons clients have the treatment. By easing how forcefully the masseter contracts, it can reduce night-time grinding, daytime clenching, and the jaw tension and headaches that come with them. Dr Shaan will assess whether it is suitable for you.

Is there any downtime?

No. The treatment takes around 15 to 20 minutes and you can return to your day straight away. You should avoid rubbing the area and strenuous exercise for the first few hours, and full aftercare guidance is given at your appointment.

Related Treatments

Pairs well with:

Anti-Wrinkle Injections for softening frown, forehead, and eye lines

Dermal Filler for adding jawline or chin definition where it is lacking

Profhilo for overall skin firmness and quality

Not sure which is right for you? Book a consultation and we'll build a personalised plan.

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Tell us what you're thinking about. We'll get back with a recommendation tailored to your skin - no pressure, no commitment.

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Jawline Slimming London | Masseter Treatment for Slimming & Grinding

Masseter Treatment

£

375