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Slimmer jawline, calmer jaw.
Masseter Botox softens an overworked jaw muscle to relieve clenching, grinding, and TMJ tension while gradually slimming a square or heavy jawline. A conservative, customized approach that protects your natural look.
Relaxing the strongest muscle in your face.
Masseter Botox is a popular treatment for those looking to achieve a slimmer jawline, reduce teeth grinding, or relieve jaw tension. Whether you are considering it for cosmetic or medical reasons, here is what to know before and after your treatment.
The masseter muscles sit on the sides of the jaw and are responsible for chewing. They are the strongest muscles in the face. When Botox is injected into the masseter, it gently relaxes the muscle. Over time this softens jaw tension, reduces grinding and clenching, and allows an enlarged muscle to shrink for a more contoured, slimmer jawline.
What masseter Botox can do.
Jawline slimming
Reducing the size of the masseter creates a softer, more V-shaped facial contour.
Relief from teeth grinding
Relaxing the jaw eases grinding and clenching (bruxism) that can lead to headaches and jaw pain.
Reduced TMJ symptoms
Lowering muscle tension can ease the discomfort of TMJ disorder.
Less jaw tension & pain
Helpful for chronic jaw tightness, soreness, and morning jaw fatigue.
Non-surgical & quick
No downtime, and the appointment is typically completed in about 30 minutes.
Customized to you
Dosing is tailored to your muscle strength and goals, then refined over time.
A quick visit, no downtime.
Small injections are placed into the masseter muscle on each side of the jaw. Before dosing, your provider will ask you to clench so the muscle can be felt and assessed. Most patients describe only a quick pinch, and the visit takes about 30 minutes.
There is no downtime. You can return to normal activities right away. Small red bumps may appear at the injection sites and usually settle within 15 to 30 minutes.
Conservative dosing, refined over time.
Masseter treatment is highly individual, so we start conservatively and refine. This protects your natural look and lets us tailor the dose to your specific muscle strength and goals.
Start conservative
We begin with a starting dose of approximately 20 units per side (40 units total), injected into each masseter.
Assess the muscle
Before dosing, your provider will ask you to clench so the muscle can be felt and assessed.
Re-evaluate at two weeks
You return in about two weeks so we can evaluate your response. If further correction is needed, we add units at that visit.
Build up gradually
Stronger or larger muscles may ultimately need more, up to roughly 25 to 30 units per side, built up gradually rather than all at once.
Adjust over visits
Dosing can be adjusted over future visits as we learn how your muscles respond.
Results build gradually.
Relaxing the muscle is only the first step. Unlike forehead or frown lines, where the result appears as soon as the muscle stops creasing the skin, jawline slimming depends on the masseter physically shrinking. A muscle that is no longer over-working gradually reduces in size over several weeks, the same way any muscle gets smaller when it is used less. That is why tension relief comes early but visible slimming takes longer.
Tension relief
Jaw tension and grinding relief is often noticed within the first 1 to 2 weeks.
Visible slimming
Jawline slimming develops over several weeks, with fuller results around 6 to 12 weeks as the muscle reduces.
How long it lasts
Effects typically last 4 to 6 months. Regular maintenance helps sustain and even improve results over time.
Masseter Botox before & after.
Individual results may vary.
Caring for your results.
Aftercare
- Stay upright for 4 hours after treatment.
- For 24 hours after your treatment, avoid rubbing or massaging the area to prevent the product from migrating.
- Skip strenuous exercise, heavy lifting, saunas, and hot yoga for the rest of the day.
- Gentle makeup is fine after a few hours. Avoid harsh or irritating products for 24 hours.
- Some chewing fatigue with tougher foods can occur as the muscle relaxes. This is normal and temporary.
Possible Side Effects
- Mild swelling, redness, or bruising at the injection site.
- Temporary jaw muscle fatigue, especially when chewing tougher foods.
- Headache or a feeling of tightness as the muscle adjusts.
- Less common: a temporary change in your smile or chewing if the dose settles unevenly, which resolves as the product wears off. Starting conservatively helps minimize this.
Who is a good candidate?
Simple, per-unit pricing.
Masseter Botox is priced per unit, so your total reflects the dose you and your provider decide on together.
A typical starting treatment of 40 units (20 per side) is about $560 standard, or $520 for Love Your Skin members. Your total depends on the units you and your provider decide on together.
Earn 200 Allē rewards points with every treatment to redeem at a future visit. Join before or at your appointment at alle.com. You may redeem existing points and gift cards with your treatment.
We offer complimentary consultations to assess your jaw and build a plan that fits your goals.
Masseter Botox, answered.
We start conservatively with approximately 20 units per side (40 units total) and re-evaluate in about two weeks. Stronger or larger muscles may ultimately need more, up to roughly 25 to 30 units per side, built up gradually rather than all at once. Your dose is customized to your muscle strength and goals, and can be adjusted over future visits.
Jaw tension and grinding relief is often noticed within the first one to two weeks. Visible jawline slimming develops more gradually, with fuller results around six to twelve weeks as the muscle reduces in size. This is slower than line treatments like the forehead because slimming depends on the muscle relaxing over time.
Effects typically last four to six months. Regular maintenance treatments help sustain and even improve results over time, since the muscle stays smaller with consistent treatment.
Most patients describe only a quick pinch, and the visit takes about 30 minutes. There is no downtime, so you can return to normal activities right away. Small red bumps may appear at the injection sites and usually settle within 15 to 30 minutes.
Some chewing fatigue with tougher foods can occur as the muscle relaxes, which is normal and temporary. Less commonly, a temporary change in your smile or chewing can happen if the dose settles unevenly, and this resolves as the product wears off. Starting conservatively helps minimize this, which is exactly why we take a gradual approach.
The effect is not permanent. As the product wears off over four to six months, muscle activity gradually returns. Many patients find the muscle stays smaller with consistent treatment over time, and you can simply discontinue if you choose, with the muscle returning to its prior state.
Injected by an experienced hand.
Masseter Botox is highly technique-dependent. Correct placement and conservative, customized dosing are what protect your natural look and your smile. At Renew MedSpa, your treatment is tailored to your specific muscle strength, goals, and anatomy.
We would rather start conservatively and refine than overcorrect. That philosophy guides every masseter treatment we perform.
A calmer jaw and a softer jawline.
Take the first step. Book your free consultation and we will assess your jaw and build a plan that fits your goals.
