MASSETER / JAWLINE SLIMMING
The masseter muscles are the large chewing muscles located at the angle of the jaw. In some people, these muscles can become enlarged due to genetics, habitual teeth grinding (bruxism), or frequent chewing of gum or tough foods. Over time, this can lead to a wider, more square-shaped jawline, which some individuals may find gives a heavier or more masculine appearance to the lower face.
Masseter anti-wrinkle injections can be used to relax and gradually reduce the size of these muscles, leading to a slimmer, more contoured jawline.
Injections can help relax the overactive jaw muscles that cause teeth grinding and clenching, reducing strain and protecting your teeth.
By easing muscle tension, the injections can help relieve discomfort and reduce the frequency of headaches caused by overworked jaw muscles.
Relaxing the masseter muscles helps protect against further enamel wear, cracks, or damage linked to long-term grinding.
The procedure involves precise injections into the bulk of the masseter muscle. Over time, as the muscle relaxes and reduces in size, the jawline becomes softer and more tapered.
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Results typically start to become noticeable within 3–5 days.
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Final results may take up to 4–6 weeks as the muscle gradually remodels.
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The slimming effect usually lasts 4–6 months, and repeated treatments may further enhance and maintain the result.
At Derma Mayfair, all masseter treatments are carried out by a qualified doctor with advanced knowledge of facial anatomy, ensuring accuracy, safety, and results that are tailored to your individual goals.
Please note: Botulinum toxin (commonly known by the brand name Botox®) is a prescription-only medicine. A full medical and psychosocial assessment is required to determine clinical appropriateness before treatment can be performed. Treatments are only provided where there is a clear therapeutic benefit, and we reserve the right to decline treatment if it is not deemed clinically suitable.
Masseter injections can help to:
-
Slim and contour a square or heavy jawline
-
Create a softer, more feminine lower face shape
-
Relieve teeth grinding (bruxism) and jaw clenching
-
Reduce tension headaches and discomfort caused by overactive jaw muscles
-
You may begin to notice changes after 3–5 days, but final results can take up to 4–6 weeks as the masseter muscle gradually reduces in bulk.
Results typically last 4–6 months. With repeated treatments, the muscle may reduce further in size, and results may last longer.
No — chewing function is preserved. The aim is to weaken overactivity without impairing normal function.
Over time, and with regular treatments, the jawline may remain slimmer due to progressive reduction of the muscle. However, if you stop treatment, the masseter muscles may gradually return to their original size.
Yes. Botulinum toxin has been used safely in medical and aesthetic practice for many years. As with all injectable treatments, there may be minor temporary side effects such as mild swelling, redness, or bruising at the injection site. Rarely, some clients may notice temporary changes in chewing strength. Any potential risks and side effects will be fully discussed during your consultation.
Most clients find the treatment comfortable, describing it as a series of small pinpricks. The procedure takes only a few minutes, with minimal downtime.
Yes. Masseter injections are often combined with other facial contouring treatments such as chin filler or cheek filler to further enhance balance and harmony of the face. They can also be performed alongside other anti-wrinkle treatments such as the forehead, frown lines, or crow’s feet.
This treatment may be suitable if you:
-
Feel your jawline looks wide or square due to large masseter muscles
-
Experience jaw clenching, teeth grinding, or tension headaches
-
Would like a softer, more tapered lower face without surgery
-
The procedure involves precise injections into the bulk of the masseter muscle. Over time, as the muscle relaxes and reduces in size, the jawline becomes softer and more tapered.
-
Results typically start to become noticeable within 3–5 days.
-
Final results may take up to 4–6 weeks as the muscle gradually remodels.
-
The slimming effect usually lasts 4–6 months, and repeated treatments may further enhance and maintain the result.
At Derma Mayfair, all masseter treatments are carried out by a qualified doctor with advanced knowledge of facial anatomy, ensuring accuracy, safety, and results that are tailored to your individual goals.
Please note: Botulinum toxin (commonly known by the brand name Botox®) is a prescription-only medicine. A full medical and psychosocial assessment is required to determine clinical appropriateness before treatment can be performed. Treatments are only provided where there is a clear therapeutic benefit, and we reserve the right to decline treatment if it is not deemed clinically suitable.
Masseter injections can help to:
-
Slim and contour a square or heavy jawline
-
Create a softer, more feminine lower face shape
-
Relieve teeth grinding (bruxism) and jaw clenching
-
Reduce tension headaches and discomfort caused by overactive jaw muscles
-
You may begin to notice changes after 3–5 days, but final results can take up to 4–6 weeks as the masseter muscle gradually reduces in bulk.
Results typically last 4–6 months. With repeated treatments, the muscle may reduce further in size, and results may last longer.
No — chewing function is preserved. The aim is to weaken overactivity without impairing normal function.
Over time, and with regular treatments, the jawline may remain slimmer due to progressive reduction of the muscle. However, if you stop treatment, the masseter muscles may gradually return to their original size.
Yes. Botulinum toxin has been used safely in medical and aesthetic practice for many years. As with all injectable treatments, there may be minor temporary side effects such as mild swelling, redness, or bruising at the injection site. Rarely, some clients may notice temporary changes in chewing strength. Any potential risks and side effects will be fully discussed during your consultation.
Most clients find the treatment comfortable, describing it as a series of small pinpricks. The procedure takes only a few minutes, with minimal downtime.
Yes. Masseter injections are often combined with other facial contouring treatments such as chin filler or cheek filler to further enhance balance and harmony of the face. They can also be performed alongside other anti-wrinkle treatments such as the forehead, frown lines, or crow’s feet.
This treatment may be suitable if you:
-
Feel your jawline looks wide or square due to large masseter muscles
-
Experience jaw clenching, teeth grinding, or tension headaches
-
Would like a softer, more tapered lower face without surgery
-
