Jawline Slimming For Grinding And Jaw Tension

The treatment uses anti-wrinkle injections to reduce activity in the masseter muscle, the large chewing muscle at the angle of the jaw. When the masseter is overactive from clenching or grinding, injections can relax it, which often eases jaw pain, reduces teeth-grinding forces and can make the lower face look softer over months.
This is not a fat-reducing treatment. The change comes from reduced muscle bulk, not from removing fat. If a broad jaw is mostly due to bone structure or fat, injections will not give a slimmed look. An experienced clinician will check how much the muscle contributes to your jaw width before recommending treatment. Evidence and clinical experience show benefit for bruxism and masseter-related jaw pain in selected patients [1].

Typical reasons people ask about this are teeth grinding, waking with jaw ache, chronic jaw tension, or wanting a less square-looking lower face. It suits people whose bite is stable and whose broad jaw comes largely from a prominent masseter muscle rather than bone or fat.
It may not be suitable if you have dental issues, loose teeth, unmanaged sleep apnoea, or if your bite requires dental or orthodontic care first. We always check dental history and, where appropriate, suggest speaking to your dentist. A careful assessment of facial proportions is essential because reducing the muscle can change how the chin and lower face relate to the rest of your face.

You may notice reduced jaw tension and less grinding within two to four weeks. Muscle thinning and a softer jawline take longer, typically three to four months, because muscle bulk reduces gradually. Early relief for pain or discomfort often precedes visible slimming. The full cosmetic effect may be clearer at three to six months.
Results vary. Many patients see meaningful improvement for four to nine months, with repeat treatment usually needed to maintain effect. Longevity depends on dose, how active your muscles are, and your individual metabolism. We take photos and measure progress so any repeat treatment is properly judged against how you responded previously.

Common side effects are mild bruising, temporary weakness when chewing, and short-term soreness at injection sites. Rarely, injections can affect nearby muscles and change smile symmetry or cause temporary dysphagia. These risks are reduced by experienced technique and correct dosing.
Have realistic expectations. If bone or fat gives a square jaw, injections alone will not produce dramatic slimming. Sometimes adjunctive approaches such as dental treatment, physiotherapy, or targeted fat-reduction are needed. An honest consultation discusses likely benefit, possible need for repeat treatments, and measurable goals tailored to your face.

Choose a clinician experienced in treating the masseter, who understands facial proportions and works with your dentist when needed. Ask about training, complication management and whether they measure muscle activity or use photos to track results. A good consultation explores dental history, sleep, clenching habits and what a successful outcome looks like.
Consultations at The Gorgeous Clinic are a chance to talk through risks and realistic outcomes without pressure. If you would like advice on what would suit your face, The Gorgeous Clinic can talk you through your options.