Jawline Slimming with Masseter Botox™ in Jesmond & Newcastle
A beautifully contoured jawline can subtly enhance your entire face- creating balance, symmetry, and confidence. For some, a strong or square jawline is caused by enlarged masseter muscles, often from genetics, teeth grinding, or habitual clenching (bruxism).
Our jawline slimming treatment using masseter BotoxTM is a precise, non-surgical solution that softens and refines the lower face, while often relieving tension, headaches, or discomfort linked to teeth grinding.
What Is Masseter BotoxTM?
The masseter muscle is one of the main chewing muscles, located at the back of your jaw. Over time, frequent clenching or grinding can cause it to become bulky- widening the lower face.
By carefully injecting botulinum toxin (BotoxTM) into this muscle, its activity is gently reduced. Over the following weeks, the muscle relaxes and gradually becomes smaller, resulting in a slimmer, softer jawline and improved facial balance-all without surgery or downtime.
Treatment Benefits
Slimmer, more contoured lower face
Softer, more feminine or balanced profile
Relief from jaw tension or clenching
Can improve symptoms of teeth grinding (bruxism)
Quick, virtually painless, with no downtime
During your consultation, I will review your medical history, medications, allergies, and facial anatomy to confirm suitability.
Results & Longevity
Initial improvement: 2-3 weeks
Full slimming effect: 6-8 weeks
Duration: 4-9 months (varies per person)
Maintenance: Every 6-9 months to maintain results
Your results will appear gradually, as the muscle gently relaxes and reduces in size. If you stop treatment, your muscle will eventually return to its original size.
Is It Safe?
Yes. When performed by an experienced medical aesthetics doctor, masseter Botox is a very safe and effective treatment. We use precise, anatomically guided injections to ensure natural movement and expression are preserved.
Temporary side effects are uncommon and mild- slight tenderness, redness, or bruising may occur. These usually settle within a few days.
What to Expect During Treatment
Consultation
We will assess your jawline, facial proportions, and muscle strength. We’ll discuss your goals, medical history, and ensure the treatment is right for you.
Treatment
Tiny injections are placed precisely into each masseter muscle. The treatment takes around 10 minutes and feels like a light pinch.
Aftercare
You can return to normal life immediately. Avoid massaging or applying pressure to the area for 24 hours, and skip strenuous exercise for a day.
Get in Touch
We are always on hand to answer any questions you may have about our treatments.
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Book a consultation
If you’re considering Jawline Slimming treatment in Jesmond, Newcastle and want expert advice tailored to your needs, we’re here to help. Our focus is on providing honest, transparent guidance and delivering results that leave you looking refreshed, confident, and completely yourself.
Book a consultation today to discover how we can help you achieve your aesthetic goals.
Frequently Asked Questions
How does BotoxTM slim the jawline?
Botox relaxes the masseter muscle, reducing its activity. Over several weeks, the muscle gradually shrinks in size, softening the appearance of a square or wide jawline.
Will I still be able to chew or smile normally?
Yes. Only a portion of the masseter is treated, so you’ll still be able to eat, chew, and express naturally. The goal is refinement, not restriction.
Is the treatment painful?
Most patients describe it as a mild sting or pinch.
When will I see results?
Subtle changes can appear within 2-3 weeks, with full slimming results visible after about 6-8 weeks as the muscle gradually reduces in size.
How long do results last?
Typically 4-9 months, depending on your muscle strength and metabolism. Many patients choose to maintain results with repeat treatments every 6-9 months.
Is there any downtime?
No-you can return to work or social plans straight away. Avoid touching the area and skip strenuous exercise for 24-48 hours.
Can this help with teeth grinding or jaw pain?
Yes. Reducing masseter activity often relieves tension, clenching, and grinding, improving comfort and sleep quality.
Are there any side effects or risks?
Possible temporary effects include mild bruising, swelling, or tenderness at injection sites. Rarely, there can be slight asymmetry or temporary chewing weakness-both typically resolve with time or minor adjustments.
How do I know if I’m a good candidate?
If you have a wide or square jawline caused by muscle bulk (rather than bone structure) or experience jaw tension or grinding, you’re likely a good candidate. We will confirm this during your consultation.