📋 In This Guide
How Masseter Botox (Jaw Slimming) Works
Botulinum toxin injected into the masseter muscle (the large jaw muscle responsible for chewing) temporarily blocks nerve signals, causing the muscle to relax and gradually shrink in size over 4–8 weeks. The result is a slimmer, more oval face shape — sometimes called a "V-line" effect in Korea.
It is particularly effective for people who:
- Have naturally large masseters (genetic or from teeth grinding)
- Grind their teeth (bruxism) — jaw slimming also reduces grinding pain
- Want a softer, more oval facial contour without surgery
The procedure takes 5–10 minutes. No numbing is needed for most patients. Results are not immediate — the muscle gradually reduces over 4–8 weeks with full effect at around 2–3 months.
Seoul Botox Jaw Slimming Prices (2026)
| Treatment | Price Range | Notes |
|---|---|---|
| Masseter Botox (jaw slimming) | ₩80,000–₩200,000 | Both sides; typically 25–50 units per side |
| Forehead Botox | ₩60,000–₩150,000 | Horizontal lines; ~20 units |
| Glabella (frown lines) | ₩50,000–₩120,000 | 11 lines between brows; ~20 units |
| Crow's feet (eye corners) | ₩60,000–₩140,000 | Both sides; ~12–24 units total |
| Full face Botox package | ₩200,000–₩450,000 | Jaw + forehead + glabella + crow's feet |
Botox Brands Used in Korean Clinics
| Brand | Origin | Status |
|---|---|---|
| Botox (Allergan) | USA | Global gold standard |
| Dysport (Ipsen) | UK/France | Diffuses more widely; popular for forehead |
| Jeuveau (Evolus) | USA | Newer; similar to Botox |
| Nabota (Daewoong) | Korea | Korean-made; FDA-approved; cost-effective |
| Meditoxin / Neuronox (Medytox) | Korea | Korean-made; widely used in Asia |
Always ask your clinic which brand they use. Reputable Gangnam clinics use Allergan Botox or Korean-manufactured brands with established safety records. Avoid clinics that are vague about product sourcing.
Top Gangnam Clinics for Botox Jaw Slimming
Results & Longevity
Initial results appear at 4–6 weeks. Full masseter reduction is visible at 2–3 months. Most patients see noticeable jaw slimming and a softer face contour. Results last 4–6 months for first-timers; as the masseter muscle gradually atrophies with repeated treatment, subsequent sessions may last longer (6–8 months) and require lower doses.
Many patients time their Seoul visit to receive Botox at the beginning of their stay so that some early effects are visible by the time they return home, with full results developing over the following weeks.
FAQ
Is it safe?
Masseter Botox is one of the most well-studied cosmetic procedures in the world. When administered by a trained physician using properly sourced products, serious complications are extremely rare. Temporary bruising at injection sites is the most common side effect.
Can I eat normally after jaw Botox?
Yes, but doctors recommend avoiding very hard foods (tough meat, hard nuts) for about two weeks after treatment, as excessive chewing may reduce the effectiveness. Soft foods are not required — normal eating is fine.
Will my face look frozen or unnatural?
Jaw slimming Botox affects only the masseter muscle and does not impact facial expressions at all. Your face will look exactly the same when smiling, talking, or making expressions — simply with a slimmer jaw contour over time.
How soon after flying can I get Botox?
There is no medical requirement to wait after flying. Many visitors get Botox on their first or second day in Seoul. It is advisable to stay upright for 4 hours post-injection and avoid rubbing the area — easily managed on a day out exploring Seoul.
Book Jaw Slimming Botox in Seoul
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