Masseter Botox Treatments

At a glance

  • Treatment time 15 minutes
  • Pain Minimal
  • Results Reduction in jaw tension within 1 to 2 weeks and muscle size reduces within 4-6 weeks.
  • Results Duration Effects last 4 to 6 months, with repeat treatments recommended for sustained results.
  • Price £495
  • Locations London, Liverpool & Manchester

What is Masseter Botox Treatment?

Masseter Botox is a non-surgical treatment that targets the masseter muscles — the strong jaw muscles responsible for chewing. When these muscles are overactive or enlarged, they can cause a wide or square jawline, jaw tension, and bruxism (teeth grinding or clenching), which can lead to headaches, facial pain, and damage to teeth.

By precisely injecting Botulinum toxin into the masseter muscles, this treatment helps to:

  • Relax the jaw muscles
  • Reduce involuntary grinding and clenching
  • Slim and contour the lower face
  • Relieve tension, pain, and jaw discomfort

Who is it for?

Masseter Botox is suitable for adults who:

  • Suffer from bruxism or jaw clenching
  • Experience jaw pain or tension headaches
  • Wish to slim a square or bulky jawline
  • Are in good general health and not pregnant or breastfeeding
  • It’s ideal for both medical and cosmetic purposes, and can be tailored to each individual’s needs.

Downtime

This is a quick, non-invasive treatment with little to no downtime. Most clients return to their normal activities immediately after the procedure. Minor swelling or bruising at the injection site may occur but typically resolves within a few days.

Are There Any Side Effects?

While side effects are rare, they can include:

  • Mild bruising, swelling, or tenderness at the injection site
  • Temporary weakness in the chewing muscles
  • Jaw fatigue when chewing tough foods
  • Headache or a feeling of tightness in the jaw (usually short-lived

All treatments are carried out by trained professionals to ensure safety and effectiveness.

Ready to start your journey?

Can’t wait to come back to the clinic soon!

After suffering with jaw pain for years and trying mouth guards with no help, I can now happily say my jaw pain has stopped.... READ MORE

Can’t wait to come back to the clinic soon!

After suffering with jaw pain for years and trying mouth guards with no help, I can now happily say my jaw pain has stopped. I am no longer clenching and I am waking up pain free. I am so glad I had this treatment and just wish I found it sooner.- Sam, June 2025 Liverpool

Frequently Asked Questions

The best time to consider having Botox® is when you begin to notice dynamic lines and wrinkles that only appear in movement (such as smiling or frowning). This usually happens in your mid thirties, although it varies from person to person depending on genetic and lifestyle factors such as sun exposure, stress and smoking. Botox® works best at this stage, rather than waiting and trying to treat deep lines where the collagen in the skin is already damaged and the wrinkle appears even when your muscles and face are not moving.

The longer you wait, the more invasive the treatments for wrinkles become – for example dermal fillers are used when Botox® will not suffice.

Areas that Botox® can treat include:

Frown lines – The lines that appear between the eyebrows

Crow’s feet – Wrinkles around the eyes

Forehead lines- The lines that appear when raising your eyebrows

Bunny lines – On the side of the nose when smiling

Necklines – Horizontal ‘necklace lines’ and vertical ‘platysmal bands’ 

Marionette lines- To lift upturned corners

Migraines

Enlarged jaw muscle – Due to excessive grinding

Hyperhydrosis- Excessive sweating

Botox®  can stop migraines before they even start, with treatments recommended every twelve weeks for maximum effect. This works by blocking the release of the neurotransmitters that cause pain, and stopping the muscles from contracting. This prevents tension build up which reduces migraines

Botox® can help with excessive sweating by blocking the signals that the body sends to stimulate sweat glands. It is injected into the skin, and the effects typically last 6 months.

Botox® can treat horizontal neck lines and vertical ‘platysmal bands’ in the neck with a treatment known as the Nefertiti Neck Lift, creating a tighter, lifted and youthful appearance.

Correctly injected, Botox can relax the muscles that pull up the upper lip, thus reducing the gums on show in a high lip line and even creates a slightly fuller looking lip.

DO use the muscles we have injected in the hour after treatment as research has shown this encourages a quicker uptake of the product.

DON’T

– lie down for 4 hours

– exercise for 24 hours

– rub your face for 24 hours

– have excessive alcohol on the day of the treatment.

Your journey starts here

January Offer

Book a course of 3 glass laser treatments and get 50% off! 

• Offer is available in London and Liverpool clinics.

• Treatment must be booked by 31st January 2026.

• The treatments must be redeemed by the 31st July 2026.

• There are no exclusions.