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Masseter Botox for Jaw Slimming in NYC
Last medically reviewed: August 2025 — Dmitriy Schwarzburg, MD
DR. SCHWARZBURG HAS BEEN FEATURED IN
Square Jawline, Clenching, and Jaw Slimming Often Come From the Same Muscle
If your jawline looks wider, heavier, or more square than you’d like, the cause is often the masseter muscle — not bone. In many patients, chronic clenching or grinding causes the masseter muscles to enlarge, which can create a broader lower face and increased jaw tension.
At Skinly Aesthetics in Manhattan, Dr. Schwarzburg uses masseter Botox to reduce that excessive muscle activity in a controlled way. The goal is not aggressive reduction, but refinement — softening a square jawline, improving facial balance, and in the right patient creating a more tapered, V-shaped appearance without compromising normal function.For patients with jaw pain or grinding, this overlaps with TMJ Botox, since both treatments target the same muscle with different priorities.
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Quick Facts: Masseter Botox
- Treatment Type: Neuromodulator injection (Botox, Dysport, Xeomin, Daxxify)
- Best For: Jaw slimming, square jawline, clenching, bruxism
- Treatment Time: 10–20 minutes
- Downtime: Minimal
- Results Timeline: 2–4 weeks
- Duration: 3–6 months
- Performed By: Dr. Schwarzburg, with 10+ years of experience in cosmetic injectables
- Location: Upper East Side, NYC
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What Is Masseter Botox?
Masseter Botox is a targeted treatment that relaxes the masseter muscle, one of the primary muscles used for chewing.
When this muscle becomes overdeveloped — often from clenching or grinding — it can create a wider, more square lower face. Botox reduces the intensity of contraction, allowing the muscle to gradually soften and slim down.
This leads to:
- a slimmer jawline
- reduced clenching and tension
- improved facial proportions
Because this is the same muscle treated in TMJ Botox, many patients also notice improvement in grinding and jaw discomfort.
What Causes a Square or Wide Jawline?
A square jaw is not always structural.
Common causes include:
- overactive masseter muscles
- teeth grinding (bruxism)
- chronic clenching
- stress-related muscle tension
Important point:
👉 not every wide face is caused by muscle — and not every patient should have masseter reduction.
What Does Masseter Botox Help With?
Masseter Botox is used to improve:
- jawline width and heaviness
- square or bulky lower face
- clenching and teeth grinding
- lower face tension and fatigue
In the right patient, this creates a more tapered and slimmer lower face and contributes to a V-shaped jawline.
Who Is a Candidate?
You’re a good candidate masseter Botox in NYC if you:
- feel your jawline is too wide or square
- clench or grind your teeth
- notice jaw tension or fatigue
- want non-surgical jaw slimming
Patients with primarily structural width may benefit more from jawline filler or chin filler.
Why Dr. Schwarzburg
Masseter Botox is one of the most commonly overdone treatments.
Too much reduction can lead to:
- an unnaturally narrow lower face
- early jowling
- imbalance between upper and lower face
Dr. Schwarzburg adjusts dose and placement based on muscle strength, facial proportions, and overall balance. The goal is controlled refinement — not flattening the jawline.
What Happens During Treatment
- Consultation: Evaluate muscle size and facial structure
- Mapping: Identify precise injection zones
- Injection: Botox placed into the masseter muscles
- Time: 10–20 minutes
Patients return to normal activity immediately.
Recovery and Downtime
Downtime is minimal.
Most patients resume normal activity the same day. Mild soreness when chewing, slight swelling, or occasional bruising can occur and resolve within a few days.
Normal function is preserved.
When Will I See Results?
Initial changes begin in 2–3 weeks, with full slimming effect visible at 4–6 weeks.
The gradual timeline helps maintain a natural appearance.
How Long Does It Last?
Typically 3–6 months.
With consistent treatment, some patients notice:
- reduced clenching habits
- longer-lasting results
Masseter Botox vs TMJ Botox
Both treatments target the same muscle:
- Masseter Botox = jaw slimming and contouring
- TMJ Botox = pain and clenching relief
In many patients, these goals overlap and are treated together.
Can It Be Combined with Other Treatments?
Yes — and in many cases, it should be.
Masseter Botox reduces jaw width, but it does not create structure or correct overall facial balance. For that reason, it’s often combined with TMJ Botox for clenching relief, DAO Botox to reduce downward pull at the mouth, and structural treatments like jawline filler or chin filler.
The best results usually come from coordinating these treatments rather than relying on a single approach.
Cost of Masseter Botox in NYC
Botox is priced per unit, with most treatments ranging on average from $500–$900.
The total depends on muscle size and how much reduction is needed. Dosing is adjusted to slim the jaw while maintaining balance and function.
Botox for Masseters: Before and After
Patients at Skinly Aesthetics have experienced transformative results, with slimmer jawlines and relief from jaw pain. Check out the incredible changes for yourself in our before and after gallery.
We accept CareCredit and Cherry. Ask us about monthly plans.
FINANCING OPTIONS
FAQs About Masseter Botox in NYC
Can masseter Botox slim a wide face?
Yes. Reducing the masseter muscle softens jaw width and creates a more tapered lower face over time.
Can masseter Botox create a V-shaped jawline?
In the right patient, yes. By reducing masseter bulk, the lower face can appear more tapered and less square, contributing to a V-shaped appearance.
Is masseter Botox good for a square jaw?
Yes – when the square shape is caused by muscle. If the jaw is primarily bone structure, other treatments may be more appropriate.
How many units are needed?
Most patients require 20–50 units of Botox per side, depending on the size and strength of the masseter muscle. Dosing is adjusted to achieve jaw slimming while preserving normal function and balance.
Does masseter Botox help with teeth grinding (bruxism)?
Yes. By reducing muscle activity, it can decrease clenching and grinding. In more severe cases, it may be combined with TMJ Botox.
Can it make my face look too narrow?
Yes, if overdone. Proper dosing avoids over-reduction and maintains facial balance.
Does it affect chewing?
No. Normal chewing is preserved.
Is it better than jawline filler?
They serve different roles. Botox reduces width; jawline filler adds structure.
Can it cause jowls?
It can if too much muscle is reduced in the wrong patient. Proper technique prevents this.
What happens if I stop treatment?
The muscle gradually returns to baseline size and activity.
How often should I repeat it?
Most patients repeat treatment every 4–6 months.
Schedule Your Consultation
If your jawline feels too wide or you’re dealing with clenching, masseter Botox can be an effective non-surgical option.
Dr. Schwarzburg evaluates your muscle activity and facial proportions to determine the right dosing – not a preset approach – so you get a balanced, natural result. Book your consultation with Dr. Schwarzburg at Skinly Aesthetics in NYC to find out if masseter Botox is right for you.
Explore treatment options tailored just for you. Schedule your consultation right now.
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Client Testimonials
Went to Skinly Aesthetics on the upper east side for my Botox treatment and loved my results. Friendly and professional staff, clean facility, and Dr. Schwarzburg is truly an artist!… read more
Steph F
Great place! Nice salon and friendly staff. It’s my first time getting Botox and she was really helpful and honest about how many units and where is needed. Will definitely… read more
dutchess
Came to Skinly aesthetics for my Botox treatment on the upper East side and couldn’t be happier! The staff was professional, facility clean, and Dr. Schwarzburg was very knowledgeable and… read more
Mireille Deetjen
Skinly Aesthetics was amazing. The Facility is beautiful, reception was ON top of things, and the medi- spa Dr made things quick and painless. Loved my results, will definitely be… read more
Jenny Oehlwein
i had such a pleasant experience at Skinlh Aesthetics. The office itself was so stylish and the staff were super friendly and helpful. The doctor was very knowledgeable and patient… read more
Lucy Glendinning
I had a great experience and great results. With only one section my eyes bag problem are gone, I tried a few different treatments before and nothing worked. I scheduled… read more
Maggie Reyes
My experience getting my lips done was amazing. The staff were very welcome and very professional. I love the way my lips turned out. I would definitely recommend Skinly Aesthetics… read more
Zee Portugal
I’ve been Dr. Schwarzburg’s returning patient for over a year! I love how he has improved my body, he is committed and perfectionist! The facility is sparkling clean and modern!! I… read more
LEYDIANA FERNANDEZ
Dr. Schwarzburg is a very polite and knowledgeable doctor. He had done my tear trough and check filler. He also does my sisters as well. She swears by him, and… read more
Anna Bella
Cheers from CATALINA –Great spa and great services; As well as awesome treatments they offer! Dr Schwartzburg is a really funny guy and has a great sense of humor! -CATALINA
Catalina Burma DR
I’m new to medical aesthetics, and it was long overdue. I was always scared of needles and any change to my face, but the time has finally arrived, when I… read more
Miranda Boyle
This place is the best! The staff is super nice and my lips look amazing! Will definitely be back!
Sarah Kagasoff
Incredibly pleasant office and staff. Cannot recommend the doctor enough. He is super knowledgeable, honest, kind and most importantly, talented!
taylor segal
This is one and only place I would ever go to for any injectables. Dr. Schwarzburg was very thorough with his assessment and had fully explained to me what I… read more
Anna Berry
Unparalleled experience with lip fillers at Skinly. Dr. Schwarzburg used his custom technique to create a beautiful upper, which nobody was able to do before that. It looks 100% natural… read more
Theresa James
I was very impressed with my filler experience at Skinly. I just turned 40 and noticed how my face sank overnight. All of my friends have been doing this for… read more
Tracey Peters
Highly recommend if you’re considering Kybella! The facility is very modern and clean; and kudos to the doctor for putting at ease throughout all of the injections. Would happily return… read more
Devon Ivie
Such a great experience! I highly recommend this place. Everyone is so friendly, and listened to my needs/gave me exactly what I asked for. I’ll be returning! Excellent, 5/5.
Grace Kellogg
I loved my visit. Everyone was so friendly and made me feel very comfortable. The office is beautifully decorated and my results were amazing. My forehead wrinkles have disappeared!
Murphy McVey
My thin lips always made me feel insecure, but I was scared of injections as I thought they were painful and would look unnatural. I came along MiracleFace as I… read more
Yana Zalukin
