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Jawline slimming is an injectable treatment designed to soften a strong or square lower face by relaxing the masseter muscles. At Centre Esthétique Montréal, this treatment is listed as the Masseter Relaxer.
It is commonly requested for two reasons: to create a slimmer facial profile and softer jawline contour, or to ease tension associated with jaw clenching and teeth grinding.
As muscle activity gradually decreases, the jawline can appear more refined while maintaining a natural face shape. Every treatment is personalized according to your facial anatomy, muscle strength and goals.
Masseter Relaxer injections are performed exclusively by licensed physicians and are available at both our Old Port and Village clinics in Montreal.
The masseter is the powerful chewing muscle located at the angle of the jaw. Frequent jaw clenching and teeth grinding can increase masseter muscle activity, causing the muscle to grow, a condition known as masseter hypertrophy, and widen the lower face.
Jawline slimming uses carefully placed botulinum toxin injections to relax the muscle and reduce its activity.
Over time, the masseter gradually loses bulk. This masseter reduction creates a softer jawline contour and a slimmer facial profile.
Unlike anti-wrinkle injections used to soften facial lines, this treatment targets the stronger chewing muscles.
It is not surgery, and it does not alter the jawbone. The change comes entirely from reducing muscle activity and allowing the facial contour to soften gradually.
Meet with one of our experienced physicians for a personalized assessment of your concerns and goals. Your physician will review your medical history, evaluate your skin or anatomy, discuss suitable treatment options, and answer your questions. If you choose to proceed with treatment on the same day, the consultation fee will be waived.
Meet with one of our experienced physicians for a personalized assessment of your concerns and goals. Your physician will review your medical history, evaluate your skin or anatomy, discuss suitable treatment options, and answer your questions. If you choose to proceed with treatment on the same day, the consultation fee will be waived.
Masseter Relaxer is priced at $13 per unit. The total cost varies because dosing is tailored to the strength, size and activity of each masseter muscle, as well as your treatment goals. Your physician will assess both sides and confirm the recommended number of units during your consultation. Results generally last three to six months.
Masseter Relaxer is priced at $13 per unit. The total cost varies because dosing is tailored to the strength, size and activity of each masseter muscle, as well as your treatment goals. Your physician will assess both sides and confirm the recommended number of units during your consultation. Results generally last three to six months.
Before treatment, you will meet with a licensed physician for a consultation. They will assess the size, strength and activity of your masseter muscles, review your medical history and discuss your goals. Avoid alcohol and non-prescribed blood-thinning medications or supplements before your appointment when medically appropriate and approved by your physician.
Your physician will ask you to clench your jaw to locate and assess each masseter muscle. After cleaning the treatment area, they will place a small number of injections on each side. The appointment usually takes 15 to 20 minutes. Most patients describe brief pinching or pressure at injection sites.
You can return to most normal activities immediately after treatment. Muscle relaxation usually begins within several days and continues to develop over the following two weeks. Visible jawline slimming appears more gradually as the masseter reduces in bulk, with changes often becoming noticeable around four to eight weeks after injections.
For the first 24 hours, avoid strenuous exercise, alcohol, excessive heat and rubbing or applying pressure to the injection sites. Follow your physician’s instructions and avoid intentionally overworking the jaw with prolonged gum chewing. You can book your follow-up appointment after two weeks to assess muscle activity, comfort and early treatment response.
Most patients describe the injections as brief pinches or moments of pressure. The treatment uses a small number of injection sites on each side of the jaw and is usually completed within 15 to 20 minutes. Your physician will explain each step and help keep you comfortable throughout the appointment.
Reduced masseter muscle activity may begin within several days, with the full relaxing effect developing over approximately two weeks. Face slimming takes longer because the muscle needs time to gradually lose bulk. Visible changes to the lower face often become noticeable within four to eight weeks and continue to develop.
Results commonly last between 3 and 6 months, although this varies according to your muscle strength, metabolism, dose and clenching habits. Regular treatments may help maintain reduced muscle activity and a softer facial contour. Your physician will recommend an appropriate treatment schedule based on how your masseter muscles respond.
No. Jawline slimming does not permanently alter the jawbone or facial structure. The treatment temporarily reduces masseter muscle activity, allowing the muscle to gradually lose some of its bulk. As the effects wear off, muscle activity returns over time, and the lower face may gradually move toward its previous shape.
By relaxing the masseter muscles, treatment may reduce tension associated with jaw clenching, teeth grinding and related jaw pain headaches. Results vary, and it should not be presented as a cure for a dental or medical condition. Patients with persistent symptoms should also consult an appropriate dental or healthcare professional.
The treatment is carefully dosed to reduce excessive masseter muscle activity without preventing normal jaw movement. Some patients may notice temporary chewing fatigue, particularly with firm or chewy foods. Your physician assesses the strength of each muscle and adjusts the dose to support both your cosmetic goals and everyday function.
Downtime is generally minimal, and most patients return to their usual activities immediately. Temporary redness, tenderness, swelling or small marks may appear at the injection sites. Follow your physician’s aftercare instructions and avoid strenuous exercise, alcohol, excessive heat, rubbing or pressure around the treated area for the first 24 hours.
Possible side effects include temporary redness, swelling, tenderness, bruising or small bumps at the injection sites. Some patients may experience temporary chewing fatigue, headache or facial asymmetry. Less common complications can occur, which is why treatment is performed exclusively by licensed physicians who carefully assess anatomy, dosage and suitability.
Botulinum toxin has been widely studied and is generally considered safe when appropriately prescribed and administered by a qualified physician. Safety depends on proper patient selection, accurate placement and an individualized dose. Your physician will review contraindications, medications, medical conditions and potential side effects before recommending treatment.
Yes. A consultation is required before treatment so a licensed physician can assess your masseter muscles, facial anatomy, medical history, symptoms and goals. This appointment determines whether jawline slimming is appropriate and establishes a personalized dose. Consultations and treatments are available at our two Montreal clinics, located in the Old Port and Village.
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