Face contouring Botox · Sinsa, Gangnam
Masseter Botox in Seoul
Cost, results & aftercare at Egg Clinic, Gangnam
Botox into the masseter muscle to slim a square jaw and relieve clenching, with gradual results over the following weeks.
- From ₩25,000
- No downtime
- 3 min from Sinsa Stn. Exit 5
- English-speaking staff
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Masseter Botox relaxes the large chewing muscle at the angle of the jaw, which gradually slims a square or wide lower face and can reduce clenching and grinding. At Egg Clinic in Sinsa, Gangnam, the doctor doses each side after feeling the muscle; slimming builds over 2–6 weeks, typically lasts 4–6 months, and published prices start from ₩25,000.
- Treatment time
- About 10–15 minutes
- Comfort
- Fine needle, ice if needed
- Downtime
- None
- Results
- Slimming over 2–6 weeks
- Lasts
- Typically 4–6 months
- Sessions
- One, repeated as needed
What is masseter Botox?
The masseter is one of the strongest muscles in the body and runs from the cheekbone to the angle of the lower jaw. Genetics, clenching, grinding or frequent gum chewing can make it thick and bulky, which gives the lower face a square shape and can cause jaw tension or tired muscles.
Masseter Botox places botulinum toxin into the thickest part of the muscle on each side. As the muscle is used less forcefully, it gradually reduces in bulk, creating a softer, more oval jawline. The force of night-time clenching also tends to ease. This treatment is also listed under jaw Botox, and for a sharper chin or jawline it can be combined with jawline fillers.
Who is a good candidate for masseter Botox?
- A visibly wide or square jaw from muscle bulk
- A muscle that bulges when you clench
- Teeth grinding (bruxism) or jaw tension
- Uneven jaw width from favouring one side when chewing
If the jaw width is mainly bone or fat, the change from Botox will be limited. People who are pregnant or breastfeeding or have certain neuromuscular disorders should not have treatment. If your face is already slim, the doctor may use a lower dose so the cheeks do not look hollow.
How much does Masseter Botox cost at Egg Clinic?
These are Egg Clinic's listed prices, updated September 2026.
| Option | Price (KRW) | Approx. USD |
|---|---|---|
| Jaw (masseter) Botox (Domestic) | ₩25,000 | ≈ $20 |
| Jaw (masseter) Botox (Coretox) | ₩50,000 | ≈ $40 |
| Jaw (masseter) Botox (Xeomin) | ₩100,000 | ≈ $70 |
| Jaw (masseter) Botox (Allergan) | ₩250,000 | ≈ $190 |
| Salivary gland Botox (Domestic) | ₩45,000 | ≈ $30 |
| Salivary gland Botox (Coretox) | ₩90,000 | ≈ $70 |
| Salivary gland Botox (Xeomin) | ₩180,000 | ≈ $130 |
| Salivary gland Botox (Allergan) | ₩360,000 | ≈ $270 |
USD amounts are approximate (₩1,350 ≈ $1) and for reference only; you pay in KRW. Your final plan and price are confirmed by the doctor at consultation. See the full Jaw Botox price page or the complete clinic price list.
Before & after at Egg Clinic
This photo shows a nasolabial fold filler result, not masseter Botox. Ask us for relevant examples during your consultation.
How much does masseter Botox cost?
Published prices for jaw (masseter) Botox at Egg Clinic are ₩25,000 with domestic toxin, ₩50,000 with Coretox, ₩100,000 with Xeomin and ₩250,000 with Allergan. The doctor recommends the dose and brand at consultation; see the jaw Botox price page for all options, including salivary gland Botox.
How the treatment works
-
Consultation
The doctor feels the masseter while you clench, checks symmetry and agrees dose and toxin brand.
-
Preparation
The skin is cleansed and the safe injection zone is marked on each side.
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Injection
Several small injections are placed deep into the muscle on each side in a few minutes.
-
Aftercare
Do not massage the jaw for a few days, and avoid saunas and alcohol on the day.
Tips for international patients
- Take a front photo before treatment; changes are gradual and easier to see side by side.
- Cut down on gum and very chewy foods for the first weeks.
- Plan your next session at around 4–6 months to keep the slimming effect.
- Book on WhatsApp with your travel dates.
Frequently asked questions
How long does masseter Botox take to work?
Clenching may ease within one to two weeks, and visible slimming usually builds over about 2–6 weeks.
How long does masseter Botox last?
Results typically last around 4–6 months. With regular treatment, some people need sessions less often.
Does masseter Botox hurt?
Most people feel brief pressure and small pricks. No numbing cream is usually needed.
Will masseter Botox change my smile?
When placed correctly in the masseter, it should not affect your smile. Choosing an experienced doctor and the right injection zone matters.
Can masseter Botox help with bruxism?
It can reduce the force of clenching and grinding and the related muscle tension. A dentist may still advise a night guard to protect teeth.
How much does masseter Botox cost in Seoul?
At Egg Clinic, published masseter Botox prices range from ₩25,000 (domestic toxin) to ₩250,000 (Allergan). The doctor confirms your price at consultation.
Related treatments & prices
Egg Clinic, Sinsa · Gangnam
- Address
- 613 Gangnam-daero, Seocho-gu, Seoul
- Directions
- 3-minute walk from Sinsa Station Exit 5 (Line 3 & Shinbundang Line)
- Opening hours
- Mon–Fri 11:00–20:30 · Sat & Sun 11:00–17:00 · Lunch 14:00–15:00
- Contact
- +82-2-542-5540(WhatsApp & text)
