Masseter Botox in St. Catharines

Typical Masseter Botox pricing in St. Catharines runs CAD$544–CAD$1,088 per session. The biggest variables are the provider's experience level and the specific device or product used. Newer technology and senior injectors price at the upper end. Pricing is quoted in Canadian dollars (CAD). Request a consultation from any of our listed St. Catharines clinics for a personalized quote.

ClinicCompass lists 14 verified St. Catharines-area clinics offering Masseter Botox, concentrated in Niagara-on-the-Lake, St. Catharines, Niagara Falls. Each listing includes real Google ratings so you can compare reputable options side by side before booking a consultation.

Among our 14 listed St. Catharines providers for Masseter Botox, Diosa Beauty Clinic currently holds the highest verified Google rating at 5★ across 161+ reviews (located in Niagara-on-the-Lake). "Best" is subjective. Compare 2–3 St. Catharines clinics before committing.

Initial results in 2–4 weeks, with full results developing over 3 months as collagen builds. St. Catharines providers typically schedule follow-ups to track progress.

Most patients wait 24 hours before applying makeup to avoid irritation on freshly-treated skin.

The masseter is the thick chewing muscle at the back corner of your jaw, and like any muscle, it grows with use. Chronic clenching and grinding can enlarge it enough to square off the lower face. Botox partially relaxes the masseter, and over 4–8 weeks the under-worked muscle shrinks (atrophies), narrowing the lower face. The effect is gradual and natural-looking.

It's a big muscle, typically 20–30 units per side (40–60 total), which is why masseter treatment costs more than a forehead area. Severe cases can need more. This is also why per-unit pricing matters more here than almost any other Botox treatment.

Yes, this is one of the best-supported functional uses of Botox. By weakening the clench, it reduces grinding force, protects teeth (and expensive dental work), and relieves the muscle tension component of TMJ discomfort, including morning jaw soreness and tension headaches. Many patients come for the grinding relief and consider the slimming a bonus.

For the first 1–2 weeks, some people notice mild fatigue when chewing very tough foods (steak, thick bagels). Everyday chewing is unaffected. Other muscles share the workload. It resolves as you adjust, and a skilled injector doses to avoid meaningful weakness.

Grinding relief starts within 1–2 weeks. The visible facial slimming is slower. The muscle shrinks gradually over 4–8 weeks, with full effect around 3 months. Photos at 12 weeks are the fair before/after comparison.

No. Like all Botox, effects fade as the product wears off over 4–6 months and the muscle can rebuild with renewed clenching. That said, after several consistent treatment cycles, many people maintain results with less frequent visits because the grinding habit itself weakens.