Masseter Treatment | Jaw Slimming & Teeth Grinding Treatment

Slim the lower face and ease teeth grinding

The masseter is the powerful muscle on each side of the jaw that closes the mouth and is responsible for chewing. In some people, the masseter becomes enlarged through repeated activity, particularly clenching and grinding. The result can be a wider, squarer lower face and, in many cases, ongoing jaw tension or pain.

Anti-wrinkle treatment placed into the masseter muscle relaxes the muscle over time, which has two distinct benefits. The lower face becomes subtly slimmer and softer in profile, and the symptoms of clenching and teeth grinding often improve significantly. Many clients book this treatment for either reason and are pleased to find they get both.

What to expect from your treatment

Following a free consultation, the treatment involves several precise injections into the muscle on each side of the jaw. The treatment itself takes around fifteen minutes.

There’s no real downtime. Some clients experience mild tenderness when chewing for a few days, which settles quickly. Light bruising is occasionally seen.

Results and timing

Relief from grinding and clenching is often noticed within one to two weeks. The slimming effect on the lower face develops more gradually, becoming visible at around four to six weeks and continuing to refine over the following months. Results typically last four to six months, often longer with repeat treatment.

Who it suits

Masseter treatment is suitable for clients with a noticeably enlarged masseter, ongoing teeth grinding or jaw tension, or both. It’s not designed to slim a jawline that’s wide for skeletal or skin-related reasons. At consultation I’ll examine your jaw and let you know whether masseter treatment is likely to give you the result you’re hoping for.

Price List

Masseter (jaw slimming or teeth grinding) £110

Frequently Asked Questions

How long until I see jaw slimming?

Visible slimming usually develops over four to six weeks and continues to refine over the following months. The effect is gradual rather than instant.

Will I still be able to chew normally?

Yes. The dose is calibrated so that the muscle is softened, not paralysed. Most clients notice no change to chewing function. Some report mild fatigue chewing very tough food in the first week, which settles quickly.

How does this help with teeth grinding?

By reducing the strength and activity of the muscle responsible for clenching, the treatment significantly lessens the force placed on your teeth and jaw joint. Many clients report relief from headaches, jaw pain, and tooth sensitivity within the first two weeks.

How long does it last?

Most clients see results lasting four to six months. With repeat treatment, the muscle can take longer to return to its previous size, so the effect often extends with subsequent sessions.

Will my face look hollow?

No. The aim is subtle slimming, not hollowing. The dose is carefully tailored to your anatomy. If you have a particularly slim face to begin with, masseter treatment may not be appropriate. We’ll discuss this at consultation.