Jaw Botox in Seoul, Korea
Jaw Botox (masseter Botox) relaxes overworked chewing muscles so a square, bulky jawline gradually slims into a softer, V-shaped contour — no surgery, no downtime, and about 10 minutes in the chair at NEST Clinic, Gangnam.
- Treatment time 5–10 min
- Downtime None
- Visible slimming 2–3 weeks
- Lasts 4–6 months
🌸 Quick answer
Does jaw Botox really slim the face? Yes — when the jaw looks wide because of enlarged masseter muscles. Botulinum toxin is injected into the thickest part of each masseter; the muscle relaxes and shrinks over 4–12 weeks, narrowing the lower face. It does not remove bone or fat, so a doctor first checks what is causing the width. Results usually last 4–6 months, and regular sessions can make them last longer.
What is jaw Botox?
Jaw Botox is an injection of a muscle-relaxing neurotoxin — such as Botox (Allergan), Xeomin or an approved Korean brand — into the masseter muscles on both sides of the face. These chewing muscles can become bulky from clenching, grinding or chewing habits, making the face look square. Relaxing them lets the muscle reduce in size, which tapers the lower face into the gentle V-line that is popular in Korea.
How it works
- Relaxes the masseter muscles
- Reduces their bulk over time
- Slims and softens the lower face
- Creates a more tapered V-line
What it can improve
- Square or wide jawline
- Enlarged masseters from chewing or grinding
- Jaw asymmetry
- Clenching, bruxism and jaw tension
Before & after: what changes
The change is gradual and natural — friends usually notice a “softer” face rather than an obvious procedure.
Who is a good candidate?
Usually a good fit
- A broad lower face with prominent jaw angles
- Strong chewing muscles you can feel when clenching
- Clenching or grinding habits
- Anyone — women and men — wanting a softer, slimmer jaw
Not the right choice for
- A wide jaw caused by bone structure alone
- Fullness from fat or sagging skin (see double chin treatments or V-line thread lift)
- Pregnancy, breastfeeding or certain neuromuscular conditions
The jaw Botox procedure, step by step
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Face & muscle assessment
The doctor feels the masseter while you clench, checks symmetry and decides dose and points.
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Precise injection
Fine-needle injections go into the thickest part of each muscle. Most people describe it as a few quick pinches.
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Back to your day
The whole visit takes about 5–10 minutes of treatment — easy to fit into a trip to Seoul.
Recovery and results timeline
There is no downtime. Mild tenderness, small bumps at injection points or slight chewing fatigue may appear and usually fade within hours to a few days.
- Day 0 Normal activities right away
- Week 2–3 Initial slimming begins
- Week 4–6 Noticeable contour change
- Week 8–12 Final V-line shape
Jaw Botox at a glance
| Also called | Masseter Botox, square jaw Botox, V-line Botox |
|---|---|
| Treatment time | 5–10 minutes |
| Anaesthesia | Usually not needed; numbing cream on request |
| Downtime | None |
| Results start | 2–3 weeks; full effect at 8–12 weeks |
| Duration | 4–6 months for most people; often longer with maintenance |
| Cost | Confirmed at consultation by product and dose. International patients pay the same local price as Korean patients. |
Medically reviewed by
Dr. Sohee Joo · Chief Executive Doctor, NEST Clinic
Medytox Best Doctor · Restylane (Galderma) Medical Advisor · Key Doctor for several injectable brands. M.Sc., Dongguk University College of Medicine; specialist training at Dongguk University Medical Center.
Jaw Botox FAQ
How long does jaw Botox last?
Most people keep their results for 4–6 months. With repeated sessions the masseter often stays smaller, so results can last longer and fewer units may be needed.
Does jaw Botox hurt?
Discomfort is minimal — a few quick pinches with a fine needle. Numbing cream can be applied if you are sensitive.
When will I see my face get slimmer?
Slimming starts around weeks 2–3, becomes noticeable at weeks 4–6 and reaches the final shape around weeks 8–12.
Can jaw Botox help teeth grinding or TMJ tension?
It can ease clenching, grinding (bruxism) and related jaw tension by relaxing the muscle. Your doctor will check whether it suits your symptoms.
Is jaw Botox the same as masseter Botox?
Yes. Both names describe Botox injected into the masseter muscles. See our masseter Botox page for more detail.
Can I get jaw Botox during a short trip to Seoul?
Yes. The treatment takes minutes and has no downtime, so many visitors book it on arrival. Results develop after you fly home.
Often considered with jaw Botox
Is jaw Botox right for your face?
Send a front and side photo on WhatsApp — our English-speaking team and doctors will tell you honestly whether muscle, bone or fat is behind the width.