The masseter is the large muscle on either side of the jaw responsible for chewing. When this muscle becomes overdeveloped, through teeth grinding, jaw clenching or natural anatomy, it can create a wide, square-looking jaw and contribute to jaw tension, headaches and tooth wear.
Masseter treatment uses anti-wrinkle injections to relax and gradually reduce the size of this muscle, slimming the lower face for a more defined, oval facial shape while also relieving the functional discomfort that comes with an overactive jaw.
Treatment areas: Masseter muscle, lower jaw
Your treatment begins with a consultation where your doctor will assess the masseter muscle on both sides of the jaw, discuss your goals and confirm suitability. Masseter treatment is suitable for most adults, with the exception of those who are pregnant or breastfeeding. Your doctor will assess the size and symmetry of the muscle before treatment to ensure a balanced result.
A topical anaesthetic may be applied beforehand for comfort. An anti-wrinkle solution is then injected directly into the masseter muscle on each side of the jaw. The session takes around 20 minutes. Results develop more gradually than other anti-wrinkle treatments because they depend on the physical reduction of the muscle itself. Full results are typically visible at 4 to 6 weeks. Mild swelling or tenderness may occur but typically settles within a few days.
Gradually reduces the size of an overdeveloped masseter for a slimmer, more oval face shape
With regular treatment, the masseter gradually reduces in size for lasting improvement
Relaxing the masseter can significantly reduce headaches caused by excessive jaw tension
Reduces the force of jaw muscle activity, alleviating bruxism and associated wear on teeth
€395 / €430
Doctor: €395
Senior Doctor & Consultant: €430
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All pricing is available here.
Reduces masseter bulk over time, creating a more defined and naturally oval facial shape
Alleviates teeth grinding and jaw clenching, protecting teeth and reducing associated discomfort
With regular treatment, the muscle gradually reduces in size for a longer-lasting improvement
Masseter treatment is one of the most versatile anti-wrinkle applications available because it addresses both aesthetic and functional concerns simultaneously. For patients who grind their teeth or clench their jaw, the treatment provides genuine relief from tension headaches, jaw pain and tooth wear while also slimming the lower face. For those whose primary concern is facial shape, it creates a softer, more oval jawline that complements the overall proportions of the face.
The results develop more gradually than standard anti-wrinkle treatments because they depend on the physical reduction of the muscle itself rather than just a relaxation of activity. Full results are typically visible at four to six weeks. With regular treatment, the masseter gradually reduces in size and results can become increasingly long-lasting over time. Both sides of the jaw are always assessed and treated to ensure a balanced, symmetrical outcome.
Following treatment, some simple precautions in the first week help protect the result and support recovery. Your doctor will go through everything before you leave.
Masseter treatment is well tolerated by most patients. Side effects are generally mild and resolve on their own within a few days.
Common temporary side effects include:
A temporary mild reduction in bite strength may also be noticeable in the first few weeks as the muscle adjusts. This is normal and resolves as the body adapts. All potential side effects will be discussed in full during your consultation.
Masseter treatment is one of the few aesthetic treatments that delivers a meaningful functional benefit alongside the cosmetic result. Patients who grind their teeth consistently find the relief significant, often describing it as one of the most impactful treatments they have had.
The cost of masseter Botox varies depending on the number of units required and your practitioner’s pricing. Typically, prices range between €250-€450 per session. Consult with your clinic for an accurate quote tailored to your needs. Check out our pricing for the latest prices on Masseter Botox.
The masseter is one of the main muscles responsible for chewing. Located on each side of the jaw, it connects the cheekbone to the lower jaw and is often overused during activities like teeth grinding or excessive chewing.
Masseter Botox is a treatment involving the injection of botulinum toxin into the masseter muscles to relax them. It helps alleviate teeth grinding, jaw pain, and tension headaches while also slimming the jawline.
Masseter Botox, also known as jawline Botox or masseter reduction, is a cosmetic procedure that involves injecting Botox into the masseter muscles to achieve a slimming effect on the face. The masseter muscles are the main muscles responsible for chewing, and when they are overdeveloped it can result in a wider or more square-shaped face.
Using a fine needle our doctor will carefully inject small amounts of anti-wrinkle treatment into the masseter muscles causing the muscles to relax and reduce in size over time. This can lead to a slimmer and more contoured appearance of the jawline and lower face.
Botox for bruxism refers to the use of Botox injections as a treatment for teeth grinding or clenching, which is medically known as bruxism. Bruxism can lead to various symptoms, including jaw pain, headaches, tooth damage, and other dental issues.
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After masseter Botox, avoid the following for at least 24 hours:
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