Jaw Line Contouring

Shaping your jaw line for a youthful triangular look. This simple treatment involves having muscle relaxants injected into the jaw and jawline muscles which is also used to reduce headaches and teeth grinding.

Safe & effective

Official Allergan National Trainer

Lasts 12 months

Results seen in 10-12 days

Muscle Relaxing Injections


Call 1300 138 797

We’re ready to answer any of your questions, call or ask us below

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Call 1300 138 797

We’re ready to answer any of your questions, call or ask us below



Softening the facial contour of the jaw line

Jaw Line Reshaping or Contouring with Muscle Relaxing Injections is a procedure designed to soften the facial contour of the jaw line giving the face a more youthful and feminine appearance. Men have a squarer jawline while young women have a triangular jawline. The softening and reshaping of the face can also reduce headaches and teeth grinding so patients don’t have to wear a mouthguard at night. As we age, the muscles in the face become stronger and more developed; just like the muscles in your body when training at the gym. The jaw line is an area that is prone to over-development as we continue to age. Combine this with fat loss in the cheek area and your face can lose its angular shape and become more “square” like.

*Results may vary from patient to patient.
**All photos are of patients from Cosmos Clinic, and all ‘after’ images are taken 6 weeks post treatment.


A very simple, quick and easy procedure

The procedure involves a few injections into the masseter muscle (the strong muscle in the jaw line) and takes about 20 – 30 minutes in most cases.

  • Prices start from $600 – $800 for initial treatment
  • Initial consultation is between $120 – $150, redeemable upon treatment

Quite often, we combine this with a Cheek Augmentation to create the optimal look for our patients. The treatment is only mildly uncomfortable and you will be left with tiny marks like mosquito bites, which will last for a few minutes. Ice is usually used to constrict blood vessels and therefore minimise the chances of bruising.



Locations available




Gold Coast



Bringing science to the art of beauty

At Cosmos Clinic, all our injectors are specially trained in performing injectable treatments; and one of our medical professionals has been appointed as an Allergan National Trainer (a prestigious title held by less than 20 doctors nationwide).

We also treat many interstate and overseas patients each year at Cosmos Clinic. Therefore, we have set procedures in place for those travelling to our clinics for treatment. For travelling patients please send us images of the areas you wish to have treated, which Cosmos Clinic you’d like treatment at, and where you’re located in the description so our staff can include all the appropriate information for travelling patients as part of your personalised quote.

50 years

of collective experience and the latest medical equipment

10 years

of experience performing Vaser Liposuction


surgical procedures in the last 10 years


Only one treatment to see the full effects

After treatment, minor swelling may occur but this is easily covered with make-up if required. Small marks, like mosquito bites, may also appear following treatment but this will only last for a few minutes. If the injection is put in too high it can affect your smile for 2 – 3 months. Some patients come during their lunch break and return straight to work or resume normal duties. However, we advise not to massage your face for a few days following the procedure.

The results of Jaw Line Reshaping with Muscle Relaxing Injections will become obvious within 10-21 days and last 8 – 12 months, with results varying from patient to patient. Most patients need only one treatment to see the full effect. It is reasonable for patients to expect long-term benefits but not permanent changes.

*Results may vary from patient to patient.
**All photos are of patients from Cosmos Clinic, and all ‘after’ images are taken 6 weeks post treatment.

Are Muscle Relaxant Injections safe?

Jaw Line Reshaping with Muscle Relaxing Injections are safe when administered by an experienced medical professional. They have been used for over 25 years in both cosmetic and therapeutic treatments without any reported long-term issues. In fact, Muscle Relaxing Injections are commonly used in higher dosages to treat children with cerebral palsy to reduce muscle spasms, lazy eye and excessive sweating.

How do Muscle Relaxant Injections work to reduce the size of the muscle?

Muscle Relaxant Injections work by reducing the activity of the muscle, which reduces the size of the jawline muscle.

How do Muscle Relaxant Injections help reduce teeth grinding?

Muscle Relaxant Injections have been shown to reduce teeth grinding activity where other techniques have failed. Teeth grinding can lead to headaches, facial pain and enlarged masseter muscles. A small amount of Muscle Relaxant Injections is all that is required to reduce activity.