Square Jaw with Botulinum Toxin Injection for a V-Shaped Face
A square jawline can result from genetics, jawbone structure or enlarged masseter muscles. The masseter muscles, located on both sides of the lower jaw, help us chew and clench our teeth.
Frequent teeth clenching, grinding (bruxism) and individual muscle anatomy may contribute to masseter muscle enlargement, making the lower face appear wider, more angular or square-shaped.
For patients who prefer a slimmer lower-face contour, non-surgical jaw slimming treatment may help reduce enlarged masseter muscles and create a softer, more tapered V-shaped facial appearance.
Non-Surgical Square Jaw Reduction with Masseter Muscle Relaxation
For patients with enlarged masseter muscles, targeted neuromodulator injections can temporarily reduce muscle activity, allowing the muscles to gradually decrease in size.
As the masseter muscles become smaller, the lower face may appear slimmer, less square and more V-shaped, without altering the underlying jawbone.
Key Benefits:
- Jaw Slimming: Reduces the appearance of a wide or square jaw caused by enlarged masseter muscles.
- V-Shaped Face Contouring: Helps create a softer, more tapered lower-face appearance.
- Non-Surgical Treatment: Does not require surgical incisions or bone reduction.
- Minimal Downtime: Most patients can resume normal daily activities shortly after treatment.
When Will Results Appear?
Masseter muscle reduction develops gradually, with visible jaw slimming commonly becoming more noticeable over 4–8 weeks. Results are temporary, and maintenance treatments may be considered depending on individual response. Treatment may cause temporary bruising, tenderness or chewing weakness. Less commonly, changes in smile symmetry or facial contour may occur.
Square Jaw Reduction Surgery
Jaw reduction surgery reshapes or removes portions of the lower jawbone to create a slimmer, more tapered jawline. Doctors may recommend this procedure when a prominent jawbone, rather than enlarged masseter muscles, causes a square jaw.
However, surgery carries risks such as swelling, infection, nerve injury and prolonged recovery. Facial implants can enhance selected facial contours but do not reduce the width of a prominent jawbone.
Our Approach to Square Jaw Reduction & Jaw Slimming in Singapore
At Ensoul Medical Clinic, our doctors assess masseter muscle size, jawbone structure and overall facial proportions to identify the cause of a square jaw and recommend a suitable treatment approach. For patients with enlarged masseter muscles, targeted muscle relaxation gradually reduces muscle bulk, helping create a slimmer jawline and a softer, more V-shaped facial contour without surgery.
Our doctors customise each jaw slimming treatment according to the patient's facial anatomy and desired outcome, aiming for natural-looking results while preserving facial balance and normal jaw function.