A large chewing muscle
Clenching, grinding or chewing gum often builds the masseter, which bulges at the angle of the jaw.
How a doctor tellsThe doctor feels the muscle while you clench; it hardens and pushes outward.
square jaw, wide lower face
A square jaw in Korea: is it muscle or bone, and what each one needs
A wide lower face is often the chewing muscle (the masseter), which botox can slim over a few weeks. If the width is bone, botox will not change it, and if it is fat or sagging, other treatments fit better. Knowing which one you have saves money and disappointment.
“Will jaw botox make my face slimmer before I fly home?”
“How do I know if my square jaw is muscle or bone?”
Why it happens: more than one cause
Wide jaw bone
The angle of the jaw itself is wide or flared. This is structure, not muscle.
How a doctor tellsLittle change when you clench; imaging may be suggested before surgery is discussed.
Fat in the lower face
Soft fullness along the jawline or under the chin widens the lower third.
How a doctor tellsThe area is soft and pinchable, and changes with weight.
Sagging jowls
Skin and fat drifting down below the jawline blur the edge and make the face look wider and squarer.
How a doctor tellsLifting the cheek gently with your fingers restores the line.
Your options, from lightest to most involved
A map for your consultation, not a prescription. The doctor decides which cause applies to you.
Care and makeup
Without any treatment
- Reduce clenchingNight guards for grinding and less gum chewing can stop the muscle growing further.
- Contour and hairShading along the jaw angle and soft layers around the jawline soften the corners.
Injections
Injections
- Jaw (masseter) botox →Relaxes the muscle. Slimming shows at about four to six weeks and usually needs repeating.
- Fat-dissolving injections →For soft fullness along the jaw or under the chin, not for muscle or bone.
Devices and lasers
Devices
- Contouring and tightening →For mild fullness and laxity along the jawline.
- Onda →Often used for the lower face and jawline fullness.
Surgery
Surgery
- Double chin liposuction →When fat under the chin and along the jaw is the main cause.
- Jaw angle reduction (V-line)Bone surgery that narrows the jaw. Not in our current price list, and it needs a longer stay and follow-up.
Doing nothing
Doing nothing
- Keep a strong jawA defined jaw is attractive on many faces. If it only bothers you in certain photos, angles and styling may be enough.
| Toxin | Price | Note |
|---|---|---|
| Korean toxin | $15–$35 | Most common first choice |
| Coretox | $35–$70 | Korean brand |
| Xeomin | $70 | Imported |
| Allergan Botox | $70–$105 | Imported |
- 01
Clench test
The doctor feels the muscle while you clench to see how much of the width is muscle.
- 02
First dose
A conservative dose, often 50 units for both sides as a starting point.
- 03
Check at 4–6 weeks
Judge the change from home with photos in the same light.
- 04
Repeat
Most people repeat at a few months; the interval is the doctor's call.
What we would avoid
- Expecting jaw botox to slim your face before you fly home. It takes weeks.
- Jaw botox when the width is bone or fat. It will not change it.
- Very high doses to slim faster. Ask the dose and brand in writing and start conservative.
- Booking bone contouring as an add-on to a skin trip.
Not sure which cause is yours? Send us your concern and dates; we match you to a doctor who will tell you honestly.
Talk to a coordinatorQuick answers
How much is jaw botox in Korea?
For 50 units on our partner list: Korean toxin about $15–$35, Coretox $35–$70, Xeomin about $70, Allergan $70–$105. VAT inclusion varies by clinic, so ask.
When will I see the slimming?
Usually at about four to six weeks, so on a short trip you will see it after you are home.
Can botox fix a bony jaw?
No. Botox relaxes muscle. Bone width needs surgery, which is not in our current list.
Does it affect chewing?
Chewing can feel weaker for a few weeks, especially with tough food. Tell the doctor if you have jaw joint problems.
Treatment guides
Jaw (masseter) botoxJaw botox in Korea: how 50 units differ by brand, and why slimming shows after you fly homeFat-dissolving injectionsFat-dissolving injections in Korea: for small, stubborn areas, not weight lossInMode (FX and Forma)InMode in Korea: FX and Forma, and what one session can realistically doOnda liftingOnda lifting in Korea: tightening, contouring, or neither for you?LiposuctionLiposuction in Korea: areas, compression, and why you should not fly the next day
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CONCERN GUIDE
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