Masseter/Jawline Slimming

Welcome to Twoth Dental + Facial Aesthetics in St. John’s Wood, London. A CQC registered clinic opened in 2022, offering the full range of treatments with a world-class team of experienced professionals. Experience exceptional dental and facial aesthetic care at Twoth Dental + Facial Aesthetics in St. John’s Wood, London.

Patient Reviews

Maiwee Silvousplais
Maiwee Silvousplais
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I have had profile balancing with Tara and I can honestly say it's been life changing. I no longer hesitate to do anything, I do not think about hiding my face when I smile or laugh or from the side. I only wish I had had the treatment done long ago. The new clinic is beautiful 😍 Tara is amazing she puts you at ease there is no pressure to treat and explains everything treatment is virtually pain free and only the teeniest of bruising. Emma on reception is wonderful very welcoming and makes you feel relaxed. I can not wait to get a few more tweaks.
Sofie Kenworthy
Sofie Kenworthy
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I visited Tara and the clinic for my first time at ever having dermal filler. Tara is absolutely amazing at what she does, she made me feel so unbelievably comfortable and my results are so naturally amazing. She has really boosted my confidence and I knew I was in such safe hands. I cant wait to see her again in a few months time, and I also cant wait to visit the clinic for additional services. The clinic is absolutely amazing and as soon as you step in side, you feel so welcome. I cant thank her enough! I couldn't of wished for more, she is an absolute perfectionist at what she does and I am so grateful for finding her.
Nilofar Soltani
Nilofar Soltani
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Dr. Tara and the team have always taken very good care of me. She has always been very attentive to my concerns and made me feel at ease during and after all my treatments. It can be daunting to go through with fillers but she has always made me feel safe & is very skilled at what she does. She is always there to provide help and advice post-treatment too, should you have any concerns. Her dedication to her craft and her patients shows through her work and the amazing service she provides. Thank you so much for all that you’ve done for me Tara, couldn’t recommend highly enough!x

What Is Masseter/Jawline Slimming ?

Our clinic offers Masseter/Jawline Slimming facial aesthetic treatment to help you achieve a more defined and balanced jawline. This non-surgical procedure involves injecting a neuromodulator into the masseter muscles, reducing their size and relaxing their activity. By slimming the masseter muscles, we can enhance the contours of your jawline, creating a more aesthetically pleasing facial profile. The benefits of Masseter/Jawline Slimming treatment extend beyond cosmetic improvements. This treatment can alleviate symptoms associated with jaw clenching or teeth grinding, providing relief from temporomandibular joint (TMJ) disorders. Additionally, it can enhance facial symmetry, improve facial proportions, and boost self-confidence.



Time of procedure

15 minutes

Discomfort Level

1 out of 5



Average Sessions Required

Once yearly

Natural Looking Results Masseter/Jawline Slimming

Natural Looking Results

Natural Looking Results Masseter/Jawline Slimming

Benefits of Masseter/Jawline Slimming

There are several benefits to Masseter/Jawline Slimming, which is why it’s such a popular option with many patients in our London practice. We’ve gone over just a few of the Masseter/Jawline Slimming benefits below.

Enhanced Facial Harmony

Achieve a more defined and balanced jawline, enhancing overall facial harmony and proportion.

Relief from TMJ Disorders

Alleviate symptoms associated with jaw clenching or teeth grinding, providing relief from TMJ disorders.

Improved Facial Symmetry

Enhance facial symmetry by slimming the masseter muscles, creating a more balanced and proportionate facial profile.

Boosted Self-Confidence

Enjoy the confidence that comes with a more defined and aesthetically pleasing jawline, enhancing your overall appearance.

Why Have TREATMENT At Twoth

Choosing Twoth ensures unparalleled care and exceptional results. With a world-class team of professionals and personalized treatment, trust us for transformative dental and facial aesthetic treatments. A CQC registered clinic, Twoth combines expertise, advanced techniques, and a luxurious environment for the smile or rejuvenation you deserve.

Meet Your Doctor...

Dr Tara Francis
Aesthetical Director

Dr. Tara’s aim is to enhance the natural beauty we already possess. Tara prides herself on her ability to provide a welcoming, relaxed and caring environment for her patients. Tara’s passion in this industry is clear and ever growing, and this shows through her work, commitment to achieve excellence, and positive feedback from patients.

As Featured In

Masseter/Jawline Slimming Treatment Journey

Your Skin Treatments and Mesotherapy treatment will be tailored to your exact requirements; therefore, one treatment can be very different from the next. However, we’ve provided a basic overview of a skin treatment below.

First step


During the consultation, our professionals assess your concerns, evaluate your facial structure, and discuss your desired outcomes.

second step


Before the treatment, we provide you with instructions to follow, ensuring optimal results and minimizing any potential risks.

third step


Before the treatment, we provide you with instructions to follow, ensuring optimal results and minimizing any potential risks.

When you are done


After the treatment, it's important to follow proper aftercare instructions, such as avoiding excessive pressure on the treated area and attending follow-up appointments as scheduled.

Priority Is Natural Beauty For
Masseter/Jawline Slimming

Fee Guide



Masseter / jawline slimming £420
There is a +£50 supplementary fee for males (males generally need more Botox for treatment to be effective)

Includes: Consultation, Numbing Cream To Treatment Area, Before & After Photos, After Care Pack

After Care of Masseter/Jawline Slimming

Avoid touching or applying pressure

Avoid touching or applying pressure to the treated area immediately after the procedure to minimize the risk of displacement.

Follow any specific instructions

Follow any specific instructions provided regarding diet or facial muscle usage.

Maintain good oral hygiene

Maintain good oral hygiene and avoid excessive pressure or trauma to the lips.

Attend follow-up appointments

Attend follow-up appointments as scheduled to monitor your progress and ensure proper healing.

Meet The Aesthetics Team


I have now visited Twoth on three different occasion... The first time was to take my son (8 years old) to see Dr Counihan for a braces consultation and my son absolutely loved the entire experience from start to finish. In fact, he was so excited and relaxed about it all he wanted to get started immediately.

The second time around, I went to see Dr Counihan myself for a second opinion and found the experience just as good as my son did

Karin Thyselius

Before I found Dr Neil Counihan I had a long history of dental trauma and sadly I repeatedly was subjected to very poor dentistry. I was scared to let anybody near my mouth and teeth. I had lost hope!

Dr Counihan made me the promise, with the right care I can keep my mouth healthy and definitely keep my teeth for the rest of my life.

And most importantly he made me feel safe and listened to

Neil M.

Frequently Asked Questions

Find the answer to the most common questions. Everything you need to know about Masseter/Jawline Slimming

Masseter/Jawline Slimming treatment is a non-surgical procedure that involves injecting a neuromodulator into the masseter muscles to reduce their size and relax their activity, resulting in a more defined and balanced jawline.

The effects of Masseter/Jawline Slimming treatment typically last around 4 to 6 months. Regular maintenance sessions can help prolong the results.

The procedure is generally well-tolerated with minimal discomfort. Our professionals take steps to ensure your comfort throughout the treatment.

Temporary side effects may include mild swelling, bruising, or tenderness at the injection site. These effects usually subside within a few days.

Results may be noticeable within a week or two as the masseter muscles gradually relax and the jawline becomes more defined.

Yes, Masseter/Jawline Slimming treatment can help alleviate symptoms of teeth grinding by reducing the activity of the masseter muscles.

Absolutely! Masseter/Jawline Slimming treatment is suitable for both men and women who desire a more defined and balanced jawline.

The treatment typically takes around 15 to 30 minutes, depending on the individual’s needs and desired outcomes.

The effects of the treatment are temporary and will gradually fade over time if you decide not to continue with follow-up sessions.

Yes, Masseter/Jawline Slimming treatment can be combined with other aesthetic procedures to further enhance your facial appearance. Our professionals will create a customized treatment plan based on your specific goals and needs.

Patient care is our top priority