Masseter Botox
Jaw slimming and bruxism relief through precise muscle reduction — dual cosmetic and medical benefits in one treatment.
What Is Masseter Botox?
Masseter botox — also known as jawline slimming botox — uses botulinum toxin to relax the masseter muscles on each side of the jaw. This reduces muscle bulk, slimming a square jawline whilst simultaneously relieving teeth grinding, TMJ pain, and jaw tension.
How the Procedure Works
The procedure takes 15–20 minutes. Your doctor assesses your masseter muscle size by palpation, then administers precise doses of botulinum toxin — typically 25–45 units per side — into strategic points within the muscle.
Dual Benefits
Cosmetic Benefits
- • Slims a wide or square jawline
- • Creates a V-shaped facial contour
- • Corrects facial asymmetry
- • Softens masculine jawline features
- • Enhances overall facial balance
Medical Benefits
- • Relieves bruxism (teeth grinding)
- • Reduces TMJ-related jaw pain
- • Alleviates tension headaches
- • Prevents dental damage from clenching
- • Reduces jaw muscle spasms
Am I Suitable?
May Be Suitable
- • Wide or square jawline you wish to slim
- • Teeth grinding or jaw clenching (bruxism)
- • TMJ pain or jaw tension
- • Facial asymmetry from muscle imbalance
- • Tension headaches originating from jaw
May Not Be Suitable
- • Jaw width caused by bone structure, not muscle
- • Active skin infection at injection site
- • Pregnancy or breastfeeding
- • Allergy to botulinum toxin
- • Neuromuscular disorders
Results & Expectations
Jaw slimming results appear within 1–2 weeks, with peak effect at 4–6 weeks as the muscle gradually atrophies. Results last 4–6 months, with many patients needing fewer sessions over time.
Real Results: Jaw Slimming with Masseter Botox
Below is an example of masseter muscle reduction following doctor-led Botox treatment. Results develop gradually as the overactive jaw muscle relaxes and reduces in size over several weeks, leading to a softer, more balanced lower face.
Images show real patients treated by our doctors at our Harley Street clinic. Individual results vary depending on muscle strength, anatomy, and dosage.
View full masseter Botox before & after galleryIncludes mild to severe jaw muscle hypertrophy cases.
Aftercare & Recovery
No downtime required. You can return to work and normal activities immediately. A few simple precautions help ensure optimal results.
Why CosmeDocs?
- Doctor-led — all treatments by GMC-registered doctors
- Harley Street, London — established 2007
- Over 1 million treatments performed
- Conservative philosophy — safety and subtlety first
- Personalised dosing based on muscle assessment
- Our aesthetics is invisible art
Frequently Asked Questions
At a Glance
Duration
15–20 minutes
Results last
4–6 months
Recovery
No downtime
Product
Botulinum toxin
Benefit
Dual cosmetic & medical
Treatment Pricing
Includes consultation & follow-up
Before & After Results
View real patient before and after results demonstrating facial slimming and jaw muscle reduction.
View before & after galleryAmara T.
"My jaw was so square from grinding my teeth. After one session my face looked slimmer and the headaches stopped. Genuinely life-changing."
More real experiencesMasseter Botox — Expert Jaw Slimming & Bruxism Treatment at Harley Street
CosmeDocs offers doctor-led masseter botox treatments for jaw slimming and bruxism relief at our Harley Street clinic in London. Masseter botox, also known as jawline slimming botox, jaw botox, or jawline botox, uses precise botulinum toxin injections to reduce the masseter muscle size. This creates a slimmer, more V-shaped facial contour whilst simultaneously relieving teeth grinding, TMJ pain, and jaw tension. Our GMC-registered doctors have been performing masseter botox treatments since 2007, with over 1 million injections performed.
How Does Masseter Botox Work for Jaw Slimming?
Masseter botox works by temporarily relaxing the masseter muscle through chemodenervation. The botulinum toxin blocks nerve signals to the overactive jaw muscle, causing it to gradually reduce in size over 2–6 weeks. This botox facial slimming technique reshapes the jawline from square to oval. Botox for masseter muscle uses 25–45 units per side depending on muscle mass. Masseter botox before and after results show dramatic jaw contouring and facial slimming within 4–6 weeks.
Masseter Botox for Bruxism and TMJ Relief
Masseter botox for bruxism effectively treats teeth grinding by relaxing the overactive jaw muscle. Masseter botox for TMJ symptoms reduces jaw pain, tension headaches, and prevents dental damage from chronic clenching. Many patients seek masseter botox for teeth grinding relief alongside cosmetic jaw slimming benefits. Our doctors assess each patient's grinding patterns and muscle tension to determine optimal dosing.
Masseter Botox Cost and Pricing
Masseter botox cost at CosmeDocs is £350 for both sides. Our masseter botox price includes comprehensive consultation, precise dosing, premium botox products, and aftercare support. How much is masseter botox UK? At £350, our masseter botox pricing represents excellent value with no hidden fees. Consultation fee is redeemable against treatment if you proceed on the same day.
Masseter Botox Side Effects and Aftercare
Masseter botox side effects are generally minimal. Common masseter botox aftercare concerns include slight bruising, redness, or temporary chewing fatigue. Serious side effects are rare. Proper masseter botox aftercare includes avoiding exercise for 24 hours and not massaging the area. Our aesthetics is invisible art — bold, natural, always your way.