Masseter Botox (Jaw Slimming)
Slim an oversized or square jaw with targeted Botox
The masseter is the chewing muscle at the angle of the jaw. When it is overdeveloped — from teeth grinding, jaw clenching or genetics — it creates a wide, square jaw. Botox injected into the masseter causes the muscle to gradually reduce in size, slimming the face over 4–6 weeks.
Masseter Botox is both cosmetic and therapeutic: it slims the lower face while also relieving jaw pain, headaches and bruxism (tooth grinding) caused by an overactive masseter. Results last 4–6 months, and with repeat treatment the muscle stays reduced long-term.
Key Benefits
- Slims a wide or square jaw for a more oval face shape
- Relieves jaw pain and tension headaches from bruxism
- Gradual, natural-looking result over 4–6 weeks
- Long-term reduction with repeat treatment
Is This Treatment Right For You?
- Patients with a wide or square jawline they wish to slim
- Those suffering from jaw clenching, teeth grinding or TMJ pain
- Anyone wanting a non-surgical V-line or more oval face shape
What to Expect
Jaw Assessment
Masseter size and degree of hypertrophy are assessed.
Injection Planning
Dose is customised to the size and strength of the muscle.
Treatment
Botox is injected into the masseter at precisely mapped points.
Follow-up
Muscle reduction is reviewed at 6–8 weeks; top-up available if needed.
Recovery & Aftercare
No downtime; mild jaw tenderness for a day or two is normal.
Frequently Asked Questions
Will masseter Botox affect my ability to chew?
No — the masseter is a powerful muscle and reducing its bulk does not impair normal chewing function.
How quickly will I see the slimming effect?
The muscle begins to reduce in size over 4–6 weeks, with the full slimming result visible at 2–3 months.
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