Masseter Reduction

Jawline Slimming Injection

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Price
£350

Procedure Time

15–30 minutes

Recovery Time

Minimal to none

Result Duration

3 to 6 months

Price: £350
Recovery Time: Minimal to none

Non-Surgical Jawline Contouring

Masseter reduction is a non-surgical treatment designed to relax and gradually reduce the size of the masseter muscle—the primary muscle responsible for chewing.

By precisely targeting the masseter muscle with face-slimming injections, this treatment helps create a more refined, contoured jawline while also alleviating symptoms associated with teeth grinding (bruxism) and jaw clenching.

As the muscle activity decreases, the lower face appears softer and more balanced, delivering both aesthetic improvement and functional relief. This makes it an effective option for patients seeking jawline slimming, along with reduced muscle tension and discomfort.

Located at 22 Bloomsbury St, London, appointments are available Monday to Friday from 10:00 am to 8:00 pm.

 

 

Jaw Muscles Explained

The masseter muscles sit on each side of the jaw and play an essential role in chewing and speaking.

In some individuals, the masseter muscle becomes enlarged due to factors such as stress, clenching, or teeth grinding. This can result in a wider or more square jawline, as well as symptoms including jaw tension, discomfort, and headaches.

Masseter reduction works by carefully relaxing the masseter muscle, allowing it to shrink over time. This leads to a softer, more contoured lower face and supports effective jawline slimming.

The Procedure

During your consultation, one of our specialists will examine your facial structure and muscle tone to determine whether the masseter treatment is the right option for you. We will also discuss your medical history, including any jaw problems or teeth grinding (bruxism).

On the day of your appointment:

  • Avoid chewing gum or eating tough foods (these can irritate the jaw muscles)
  • Avoid alcohol and blood‑thinning medications (ibuprofen, aspirin) for 24 hours before treatment to reduce bruising

The procedure is quick, usually taking around 15 to 30 minutes. One of our specialists will administer the treatment to your masseter muscles on the sides of your jaw. Most patients only feel a slight pinch or mild discomfort. If you are worried about pain, we can apply a numbing cream.

After your jawline slimming treatment, you might notice mild swelling, redness, or bruising at the injection sites. These side effects usually disappear within a few days.

Do’s & Don’ts for 24 hours after treatment:

  • Do not massage or put pressure on the treated area
  • Do not lie down flat for 4 hours
  • Do not do strenuous exercise
  • Do not drink alcohol or take NSAIDs (ibuprofen, aspirin)
  • Do apply a cold compress gently if needed

There is minimal downtime, and most patients can return to normal activities the same day.

Initial changes in the masseter muscle may be noticed within 1–2 weeks. Visible jawline slimming typically develops gradually over 4–6 weeks as the muscle shrinks.

Results generally last between 3 and 6 months, with maintenance treatments recommended to sustain the effect.

Prior To Treatment

During your consultation, one of our specialists will examine your facial structure and muscle tone to determine whether the masseter treatment is the right option for you. We will also discuss your medical history, including any jaw problems or teeth grinding (bruxism).

On the day of your appointment:

  • Avoid chewing gum or eating tough foods (these can irritate the jaw muscles)
  • Avoid alcohol and blood‑thinning medications (ibuprofen, aspirin) for 24 hours before treatment to reduce bruising

Treatment

The procedure is quick, usually taking around 15 to 30 minutes. One of our specialists will administer the treatment to your masseter muscles on the sides of your jaw. Most patients only feel a slight pinch or mild discomfort. If you are worried about pain, we can apply a numbing cream.

After Treatment

After your jawline slimming treatment, you might notice mild swelling, redness, or bruising at the injection sites. These side effects usually disappear within a few days.

Do’s & Don’ts for 24 hours after treatment:

  • Do not massage or put pressure on the treated area
  • Do not lie down flat for 4 hours
  • Do not do strenuous exercise
  • Do not drink alcohol or take NSAIDs (ibuprofen, aspirin)
  • Do apply a cold compress gently if needed

What To Expect

There is minimal downtime, and most patients can return to normal activities the same day.

Initial changes in the masseter muscle may be noticed within 1–2 weeks. Visible jawline slimming typically develops gradually over 4–6 weeks as the muscle shrinks.

Results generally last between 3 and 6 months, with maintenance treatments recommended to sustain the effect.

The Results

The results are natural-looking and subtle. Friends and family will notice you look more refreshed, not “done.”

  • Helps alleviate bruxism (teeth grinding)
  • Offers natural‑looking changes
  • A more sculpted, contoured look for the face
  • Enhances facial balance
  • Reduces the appearance of a square or bulky jaw (effective masseter reduction)

Masseter Price

Masseter Treatment

£350

Jawline Filler

£285

Cheek Filler

£285

Masseter Treatment

£350

Jawline Filler

£285

Cheek Filler

£285

testimonials

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Sam Kavanagh
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Cannot rate this clinic highly enough. From initial booking and greeting from Carly who is always so lovely and accommodating, through to the treatment with Flavio. I wouldn’t trust anyone else with my face. He takes time and pride in his procedures. He makes you feel so special as a patient, he shares advice, he makes you feel safe and talks through everything with you. You leave feeling so confident in your appearance. Flavio’s work is unmatched, truly an artist and a magician.
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hema soneji
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Oh my word, what an incredibly efficient and friendly place. Forgot my B12 while travelling and I was sorted within a day. Staff are just incredible
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Olivia Davies
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Lovely welcoming clinic,Carly and Marina are fabulous, and I always feel like I am given the best service. I will be back for more treatments soon
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Sarah
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I had a fabulous deep cleanse facial by Marina and it was spectacular. Amazing results and just what I needed at the end of a holiday! I’ve been to the clinic on a few occasions for this facial and each time it has been the best! It is the only clinic I will go to for a deep cleanse facial as it has demonstrated better results than any other clinic I’ve been to. Marina did my first ever facial at CF so I was thrilled to have another appointment with her! I really appreciated the time and care she put into my facial. I love how the extraction process doesn’t cause much redness, so when you are leaving the clinic your face isn’t blotchy or painful.
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Jason Molloy
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I’ve been coming to clinica Flore for a few years now and I honestly couldn’t recommended them enough. Always a warm welcome from the team Carly and Marina. The treatment is thoroughly professional and sorts out my chronic rosacea everytime, it’s a 10 out of 10 from me.
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Omphile mabo
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Before going in for my HIFU treatment I did some reading about the procedure, particularly about the side effects. One that had me a bit worried was being blotchy and red as I do have sensitive skin. However, Flavio was so gentle that I didn’t experience any redness after the treatment or pain during the procedure. Their staff is so friendly from the minute you call them to book an appointment to them performing the procedure. They update you with every step of the process so that you are aware of what they are doing to your face. I highly recommend their services they have indeed impressed me and I can’t wait for my next appointment with them. #HappyClient
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Franko Briseno
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I have been to other clinics and it is the first time the staff has been amazing, they showed they are actually passionate for what they do and they do care for the patients. I am over the moon with the treatments I received, I can say I’ve got incredible results. Definitely going back to Fiore for future treatments, and highly recommend it. Thank you so much Flavio, truly appreciate your commitment!
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Fabri
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Great combination of the new and improved HIFU and new skin pen with ultrasound! Both treatments combined have massively improved the skin texture and lifting of facial contours, not even 24 downtime and virtually painless in my case, loved it! Would definitely recommend this combo or even as separate treatments as I did see big improvements on each session! Also the clinic is always at such high standards and always immaculately presented! Thank you, will be back!
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FAQs

Can I combine Masseter with other treatments?

Yes, this treatment can be combined with other facial treatments to further enhance overall facial balance.

Results typically last between 3 to 6 months, depending on individual factors.

Initial effects can be noticed within 1–2 weeks, with full results developing over 4–6 weeks.

Most patients experience minimal discomfort. A numbing cream can be used if required.

Yes, by reducing tension in the masseter muscle, the treatment can help relieve symptoms associated with jaw clenching and teeth grinding.

Yes, the treatment is designed to create subtle, natural-looking improvements while maintaining facial balance.

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