Masseter Reduction Treatments
Masseter reduction with Bot*x has many benefits which includes relaxing the masseter muscle to reduce tooth grinding and to slim the appearance of the jaw. At Harley Street Dermal we have been perfecting our masseter reduction treatments with careful measurements and dosing schedules that are designed to weaken the masseter muscle in a way that is safe, effective and aesthetically pleasing.
What is the Masseter muscle and how does Bot*x help with it?
The masseter muscle is a large muscle that sits over the angle of the jaw and its main use is to help us to chew. Unfortunately, the masseter muscle can sometimes be too strong- causing us to grind our teeth leading to potential cracks. An overgrown masseter can also make the jaw appear wider and more square.
Bot*x is a medicine which is injected directly into the masseter muscle in the jaw. The medicine acts to relax these muscles which then reduces the biting force created by the contraction of these muscles. This in turn causes the muscle to waste (atrophy) which, with successive treatments, causes the muscle to slim down over time. This also helps to reduce tooth-grinding and clenching in the jaw which then protects the teeth from excessive biting force which can cause them to crack under the pressure. Bot*x was known as far back as the 1970s when it was used to treat a condition of the eye muscles called “strabismus”. In the 1990s, however, it was first proposed that it could be used to provide cosmetic enhancements. Since then it has been used safely and effectively on millions of people worldwide for masseter reduction with consistent results.
Why consider having Masseter Reduction Treatment?
- Masseter reduction is extremely effective at reducing tooth-grinding thereby protecting your teeth.
- Masseter reduction also helps to slim the appearance of the jaw, making it appear slimmer and less bulky
- Some people have one masseter larger than the other- masseter reduction can help restore symmetry in these cases
- The results look completely natural and most people won’t look like they had treatment by the time the treatment settles
- The treatment usually takes around 10 minutes so it’s easy to fit in between other commitments
- There is usually minimal downtime and you can usually resume your normal routine immediately after treatment.
- Results usually last around 4-6 months
- There’s no long-term commitment- in the event that you feel the treatment is not for you, the treatment can be left to disappear over time.
Our Masseter Reduction Results


Why should I have my Masseter Reduction treatment at Harley Street Dermal?
- Dr Ria and his highly experienced team are amongst the leading cosmetic doctors in London, with over 20,000 treatments performed successfully over the last 10 years
- We focus on producing results that look as natural as possible, working hard to break the stereotypes of ‘fake’ results that can often be seen online or on social media
- We use only the highest quality products that focus on delivering results with safety as a top priority
- We use the most advanced and effective dosing protocols, we tailor the dose of your treatment to suit you, this way the treatment delivers exactly what it needs to without over- or under-doing it. This type of precision can only be achieved after having performed thousands of treatments over the years.
- We aren’t afraid to say no– not everyone is suitable for treatment and we pride ourselves on giving an honest opinion with realistic expectations. We’ll make it clear whether or not you’re suitable for treatment and will help you consider alternative options if this is the case
- We have a proven track-record– just have a look at our hundreds of before/after images that showcase only a small selection of our brilliant work over the years
- Our reviews speak for themselves- with over 1000 5-star Reviews on Google and Trustpilot, it’s not difficult to imagine that patient satisfaction is our top priority
- Our prices are competitive and reasonable. We are more affordable than most other clinics for the uncompromising high quality results that we deliver at such a prestigious location
- We are based at a beautiful first-class clinic at the world-renowned Harley Street, located at the heart of London
- We care that you care– our doctors are easily and directly contactable by anyone after treatment to ensure that you are recovering safely and with the results you want. This includes reviewing treatment where necessary and without charge.
At A Glance
Procedure time: 15 mins
Frequency: 4-6 months
Recovery: Minimal
Targets: Jaw slimming. Tooth grinding
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Pricing: From £350, see fees page.

Pain: Minimal
Only natural-looking results
10 years experience and over 1,000 5-star reviews on Google and Trustpilot
Frequently Asked Questions
How do I know if Masseter Reduction Treatment is right for me?
The answer to this is quite simple- if you grind your teeth or want to slim your jaw effectively at an affordable price, with minimal down time and without the hassle and expense of surgery, then masseter reduction treatment using Bot*x could be the right solution for you.
Will the results look natural?
Absolutely. Our team of highly experienced doctors are amongst the most respected and sought after practitioners for dermal fillers in London with over 20,000 treatments performed successfully over the last 10 years. Our focus is on enhancing your appearance in a way that doesn’t draw the wrong type of attention to yourself but rather subtly enhances what you already have or restores what you might have lost in volume over the years.
Is Masseter Reduction treatment painful?
Weirdly, no! A topical anaesthetic will be applied to help numb the treatment area beforehand. Our doctors use a combination of injection techniques which are often only mildly uncomfortable and most people tolerate the procedure without any issue and minimal pain.
What should I expect on the day?
Your doctor would usually welcome you and start with a detailed consultation. This would include discussing any previous treatments you’ve had, what your understanding of the treatment is and exploring your goals and expectations. They will also discuss the nature of the injecting procedure and related risks. If you are agreeable, the doctor will then usually conduct the treatment by first taking a pre-treatment photo and then applying topical anaesthetic while you complete the necessary medical and consent forms. After the treatment is complete, the treatment area is massaged and cleaned and then a post-treatment photo is usually taken for comparison purposes. The doctor will then explain any relevant aftercare and offer you information on how to contact them for questions or any follow-up you might require. Our doctors are always contactable directly for any clinical queries by email.
What should I expect afterwards?
There will usually be some redness and swelling in the injected areas. Usually this is mild/minimal but can vary from person to person and depending on the amount of work conducted during treatment. It’s usually easy to mask using cosmetics and often doesn’t last for more than a few days at most.
Are there any precautions I should take beforehand or afterwards?
We usually advise that you refrain from drinking any alcohol for 48 hours before your treatment as this could increase your chances of bruising. Other than that, there’s not much you need to do in preparation for the treatment. We do not advise stopping any medication before your treatment.
Is there any follow-up after the procedure?
We don’t routinely follow up everyone after their treatment. However, in certain cases some people will need more treatment and they would usually be encouraged to come for a top-up or ‘second stage’ treatment (which comes with a charge). However, if you ever feel the need to be reviewed after your treatment for whatever reason then our doctors are always happy to offer this free of charge.
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