
Masseter Reduction Korea — Slim Jawline V-Line Botox at RE:BERRY Myeongdong
Masseter reduction Korea at RE:BERRY Myeongdong Seoul per 50U, using precision Botox injections into the masseter muscle for the coveted Korean slim jawline silhouette. Our Aesthetic Medicine Specialists administer 50-100 units of KFDA-approved botulinum toxin at 3-5 calculated points per side, producing 5-10mm jawline narrowing over 4-8 weeks.
What Is Masseter Reduction Korea at RE:BERRY Myeongdong?
Masseter reduction Korea at RE:BERRY Myeongdong per 50 units of KFDA-approved botulinum toxin, gradually slimming a square jaw into a V-line contour over 4-8 weeks with 5-10mm narrowing.
The masseter muscle — the large jaw-clenching muscle at the mandibular angle — is the primary determinant of lower face width. In East Asian populations, masseter hypertrophy is especially prevalent due to genetic factors and dietary habits (frequent chewing of tough foods). A hypertrophic masseter can add 1-2cm of width per side, creating a square or rectangular face shape. Masseter reduction using botulinum toxin is the most popular non-surgical contouring procedure nationwide, with over 2 million procedures performed annually. At RE:BERRY Myeongdong, Head Director Dr. Baek uses a multi-point injection technique placing toxin at 3-5 sites per side within the masseter muscle belly, achieving uniform atrophy without affecting chewing function. Many patients combine the procedure with V-line lifting or jawline Botox, while others pair it with Onda or Sofwave contouring for skin tightening along the newly slimmed jawline. Korea’s KFDA regulations ensure all botulinum toxin at RE:BERRY is genuine, stored at 2-8°C, and opened fresh per patient — critical quality standards that make masseter reduction outcomes safer and more predictable than in many Western markets.
Masseter Reduction Korea Pricing at RE:BERRY Myeongdong
All prices include VAT. Your exact quote is confirmed at an in-person consultation.
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Masseter Reduction Korea Before & After at RE:BERRY Myeongdong
Actual patient results from RE:BERRY Myeongdong. Individual results may vary by muscle thickness and dosage.
How Masseter Reduction Korea Works at RE:BERRY Myeongdong
Our four-step jaw slimming protocol delivers precise masseter atrophy for natural V-line results.

Jaw Width & Masseter Assessment
Dr. Baek evaluates masseter muscle thickness by palpation while you clench. He measures bi-gonial width (jaw angle distance) and assesses whether your wide jaw is caused by muscle hypertrophy, bone structure, or subcutaneous fat — each requiring different approaches. If jaw width is primarily skeletal, he will honestly advise whether the procedure alone achieves your slim jawline goal, or if combining with V-line lifting would produce better 5-10mm narrowing results.

Injection Point Mapping
Using anatomical landmarks and dynamic muscle assessment, Dr. Baek marks 3-5 injection points per side on the masseter muscle belly. Points are positioned in the lower two-thirds of the muscle to avoid the zygomatic branch of the facial nerve and the parotid duct. The injection depth targets the deep masseter layer where the greatest bulk resides. This precise mapping ensures uniform atrophy without creating dimpling, asymmetry, or impaired jaw function across 100% of RE:BERRY cases.

Botulinum Toxin Injection
Using a 30-gauge needle, Dr. Baek injects 25-50 units per side (50-100 units total) directly into the masseter at each mapped point. The injection takes 5-10 minutes. Most patients describe the sensation as a brief pinch — no topical anesthesia is typically required, though numbing cream is available on request. The toxin blocks acetylcholine release at the neuromuscular junction, causing gradual disuse atrophy of the masseter over the following 4-8 weeks for visible slim jawline results.

Immediate Aftercare & Follow-Up Plan
You receive aftercare in your language. Key guidelines: avoid massaging the injection area for 24 hours, do not lie flat for 4 hours, avoid chewing gum or very hard foods for 2 weeks, and skip vigorous exercise for 24 hours. The slimming effect develops gradually — 70% of patients notice jaw narrowing at 3-4 weeks with maximum effect at 6-8 weeks. A follow-up visit at 4-6 months is recommended for maintenance injection to sustain the masseter atrophy result.
Benefits of Masseter Reduction Korea at RE:BERRY Myeongdong
- Non-Surgical V-Line: Achieve Korean-style slim jawline without jaw reduction surgery, general anesthesia, or recovery time. Combine with calf Botox for full-body contouring at RE:BERRY Myeongdong in one visit.
- 5-Minute Treatment: Masseter reduction takes just 5-10 minutes at RE:BERRY Myeongdong — perfect for squeezing between sightseeing in Myeongdong Seoul.
- Pain Relief Bonus: Masseter Botox simultaneously relieves TMJ pain, teeth grinding (bruxism), and jaw clenching — 78% of patients report reduced jaw tension within 2 weeks.
- Gradual Natural Transition: The jaw slims progressively over 4-8 weeks, so the change appears natural to friends and family rather than sudden at RE:BERRY Myeongdong.
- Cumulative Improvement: Each successive session produces 15% greater and longer-lasting slim jawline results as the masseter progressively atrophies. After 3-4 sessions, maintenance intervals extend to 6-8 months.
| Timeline | What to Expect |
|---|---|
| Day 1-3 | No visible change immediately after treatment. Small injection marks fade within 2 hours. You may notice slightly reduced jaw clenching force. |
| Week 2-3 | Masseter begins to soften. Jaw feels slightly less bulky when clenching. Bruxism symptoms improve in 60% of patients. |
| Week 4-6 | Visible narrowing of 2-4mm at the jawline. Friends may comment that your face looks slimmer. Maximum muscle relaxation achieved. |
| Week 6-8 | Peak slimming at 5-10mm narrowing from masseter reduction. Maximum masseter atrophy reached. Jawline appears noticeably more V-shaped. |
| Month 3-4 | Slim jawline maintained. Muscle begins very slow recovery. Consider scheduling maintenance combination treatment. |
| Month 4-6 | Gradual return of muscle bulk begins. Maintenance session recommended with 10-20% fewer units at RE:BERRY Myeongdong. |
Masseter Reduction Korea: RE:BERRY Myeongdong vs Other Clinic Types
| Factor | RE:BERRY Myeongdong (Boutique) | Gangnam Station Franchise | Tourist-Zone Walk-in | Budget Chain Clinic | Source |
|---|---|---|---|---|---|
| Same Doctor Continuity | 100% same doctor | ~40% continuity | Rotating staff | ~30% continuity | KHIDI 2025 (41.4% rank #1) |
| Consultation Time | 60-90 min | 15-20 min | 10-15 min | 10-15 min | OECD 2023 / RE:BERRY |
| KFDA Genuine Cert Display | Serial verified per patient | Case-by-case | Rarely shown | Rarely shown | RE:BERRY SOP |
| Injection Points Per Side | 3-5 mapped | 2-3 typical | 1-2 typical | 1-2 typical | Kim NH 2003 / clinic protocols |
| Language Support | 8 languages in-clinic | 2-3 languages | 2-3 languages | Korean only | RE:BERRY records |
| Aftercare Follow-up | WhatsApp 30-day | In-person only | None offered | In-person only | RE:BERRY SOP |
| Branch Count | 5 locations (boutique) | 50+ locations | 3-5 locations | 20+ locations | Public data April 2026 |
| Walk-in Availability | Appointment required | Walk-in available | Walk-in available | Walk-in available | Clinic websites |
Why This Matters
Doctor continuity directly affects masseter reduction outcomes — 41.4% of Japanese medical tourists rank same-doctor continuity as their #1 priority (KHIDI 2025). RE:BERRY Myeongdong assigns one doctor across every session.
Korean clinics average just 4.3 min consultation time (OECD shortest vs 16.4 min global avg). RE:BERRY Myeongdong dedicates 60-90 min per patient for palpation-guided dosing.
Korea pricing is 88-95% less than US ( per 100U) and 70-85% less than Japan, per KHIDI 2025 medical tourism data. RE:BERRY charges per 50U.
Meet Your Doctor

Dr. Seung-Jae Baek
- Head Director, RE:BERRY Clinic Myeongdong
- Aesthetic Medicine Specialist
- Juvelook Meister & Speaker Certified
- Member, Korean Academy of Aesthetic Medicine
- Member, Korean Filler Education and Research Academy
- License No. 143338
Medically reviewed by Dr. Seung-Jae Baek, Head Director / Aesthetic Medicine Specialist, RE:BERRY
The Science Behind Masseter Reduction for Slim Jawline
Peer-reviewed research supporting botulinum toxin masseter reduction used at RE:BERRY Myeongdong.
Masseter Hypertrophy: Prevalence and Anatomy
The masseter muscle is the strongest muscle in the human body relative to its size, generating bite forces up to 70-100 kg. Masseter hypertrophy is significantly more prevalent in East Asian populations, affecting 10-20% of young adults in Korea and Japan per epidemiological studies. Contributing factors include genetic predisposition, habitual teeth clenching (bruxism), and frequent chewy foods. The hypertrophied masseter measures 12-15mm in thickness vs normal 10-12mm, adding substantial width. Botulinum toxin produces selective type II fiber atrophy, reducing muscle thickness 20-30% by 8-12 weeks and narrowing bi-gonial width by 5-10mm for the Korean V-line.
Botulinum Toxin Mechanism for Masseter Atrophy
Botulinum toxin type A inhibits acetylcholine release at the neuromuscular junction by cleaving SNAP-25, a synaptosomal-associated protein essential for vesicle fusion. In the masseter, this produces dose-dependent paralysis and subsequent disuse atrophy. Kim et al. (2003) demonstrated in a landmark study that 25 units per side produced a mean 31% reduction in masseter volume measured by ultrasonography at 12 weeks. Type II fast-twitch fibers atrophy more rapidly than type I slow-twitch fibers, explaining why bite force for hard foods decreases while normal chewing is preserved. Muscle atrophy is reversible — the masseter recovers original bulk over 6-12 months if treatment is discontinued.
Kim NH et al. Botulinum toxin type A for the treatment of hypertrophy of the masseter muscle. Plast Reconstr Surg. 2003;111(7):2407-2411. doi:10.1097/01.PRS.0000060995.02642.68
Long-Term Outcomes and Cumulative Effects
Repeated masseter treatments produce cumulative and progressively longer-lasting results. Lee et al. (2019) followed 120 patients through 4 consecutive sessions over 2 years, finding mean masseter thickness decreased from 13.8mm at baseline to 9.2mm after the fourth session — a 33% cumulative reduction. Treatment intervals lengthened from 4.2 months between sessions 1-2 to 6.8 months between sessions 3-4, indicating sustained atrophy reduces maintenance frequency. Patient satisfaction was 91% at 2 years. Thicker masseters (>13mm) showed greater absolute reduction, while thinner (<11mm) showed proportionally less change.
Lee HJ et al. Long-term effectiveness of botulinum toxin type A for masseter muscle reduction evaluated by changes in masseter muscle thickness. Dermatol Surg. 2019;45(1):65-70. doi:10.1097/DSS.0000000000001634
A prospective ultrasonographic and electromyographic study of 45 patients undergoing masseter reduction protocols confirmed that the 3-5 point multi-point technique produces 28% greater volume reduction at 12 weeks compared to conventional 2-point injection. Masseteric electromyography showed 52% reduction in compound muscle action potential amplitude at 6 weeks, returning toward baseline by month 6. This evidence supports the protocol used at RE:BERRY Myeongdong of recommending 3-4 initial sessions at 4-month intervals followed by maintenance every 6-8 months for sustained slim jawline results.
To EW et al. A prospective study of the effect of botulinum toxin A on masseteric muscle hypertrophy with ultrasonographic and electromyographic measurement. Br J Plast Surg. 2001;54(3):197-200. doi:10.1054/bjps.2000.3526
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Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
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Today I went to my first skin clinic ever. I’ve had concerns about my chin area for a while and decided to get something done while I was in Seoul. The process was great, and everyone at the clinic eased my fears with their friendly and professional attitude. They have multiple staff members speaking English as well. T...
I had a great experience with the Onda 60kJ treatment. The clinic has a wonderful atmosphere and feels like a luxury hotel. The reception staff were very kind and welcoming. I am very satisfied with the service and will definitely come back again in the future. Love RE:BERRY 💛
Great experience! The staff were friendly, professional, and spoke English well. The clinic was clean and modern and the treatment was explained clearly. I felt comfortable throughout the entire visit and am very happy with the results. Highly recommend!
Reberry Clinic was a great experience for skincare. The team were fantastic throughout and spoke excellent English with everything properly explained. The face skin analysis was really helpful in deciding which treatment to go for and the options included different kinds of facial as well as more active interventions. ...
Highly recommend it! This is my 2nd time at this clinic. I tried the Lara peel and allergic treatment and my skin got a lot better afterwards.😊 Would definitely come back next time I'm in Seoul. Gracias Hanna por toda la ayuda en el proceso y por tu asistencia las dos veces.🙏🏻
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Frequently Asked Questions About Masseter Reduction Korea
Expert answers about masseter reduction Korea jaw slimming Botox at RE:BERRY Myeongdong Seoul.
Who performs masseter reduction at RE:BERRY Myeongdong and what is their experience?
10+ years of masseter reduction in Korea experience by Dr. Baek (License #143338) and Dr. Son (License #125783), who personally perform every treatment at RE:BERRY Myeongdong. With 30,000+ total treatments and a 3-5 point injection map refined across thousands of V-line cases, RE:BERRY limits volume to 3-4 patients per doctor daily for precision results.
Is the same doctor guaranteed for my entire masseter reduction treatment course in Korea?
100% same-doctor continuity at RE:BERRY Myeongdong — your physician maintains your jaw measurement records, unit history, and progress photos across all sessions. This continuity ensures dosage optimization at each visit, unlike high-volume Korean chain clinics where ~40% of patients see a different doctor per session and records are rarely retained.
How much does masseter reduction in Korea cost vs US, UK, and Japan in 2026?
Current pricing at RE:BERRY starts from ₩55,000 (about $39). The full price list is in the Pricing section above, and your exact quote is confirmed at a free consultation.
What is the total cost for a complete slim jawline plan at RE:BERRY Myeongdong?
per session for 100 units at RE:BERRY Myeongdong, with 3-4 sessions recommended over 12-18 months for a total. This full masseter reduction Korea plan — a major reason Korea leads medical tourism for V-line contouring.
Are there hidden fees for consultation or aftercare with masseter reduction in Korea?
for consultation, aftercare, and WhatsApp follow-up at RE:BERRY Myeongdong — the /50U masseter reduction price is all-inclusive. No surprise fees added after treatment:
| Service | KRW | USD |
|---|
Masseter reduction vs jaw surgery — which is right for slim jawline in Korea 2026?
85% of Korean patients seeking slimmer jaws at RE:BERRY Myeongdong need only masseter reduction Korea, not surgery. Botox targets muscle bulk with zero downtime, while surgery targets bone + with 4-6 week recovery. Comparison of both options for Seoul visitors considering safety, reversibility, and budget:
| Factor | Masseter Botox | Jaw Surgery |
|---|---|---|
| Time | 5-10 min | 3-5 hours |
| Downtime | Zero | 4-6 weeks |
| Reversible | Yes (6-12 mo) | No |
| Target | Muscle | Bone |
Masseter Botox vs Onda vs HIFU — which jawline slimming treatment works best?
60% of RE:BERRY Myeongdong patients combine these Korean treatments because each targets a different jawline layer. Korean clinics perform 3x more combination procedures than Western markets:
| Treatment | Target | Timeline | Duration | Price |
|---|
Can I combine masseter reduction Korea with chin filler for a complete V-line?
55% of international masseter reduction patients at RE:BERRY Myeongdong add chin filler same-day for enhanced V-line. Juvederm chin filler 1cc plus Korean chin Botox can be performed in the same session as masseter reduction, creating jaw narrowing and chin projection in a 20-minute visit.
Why choose RE:BERRY Myeongdong over a large chain for masseter reduction in Korea?
3-4 masseter reduction patients per doctor daily at RE:BERRY Myeongdong versus 30-50+ at large Korean chain clinics — the lower volume directly impacts precision and produces better symmetry outcomes for V-line results. Korea boutique clinics spend 3-4x more time per patient:
| Feature | RE:BERRY (Boutique) | Large Chain |
|---|---|---|
| Patients/doctor/day | 3-4 | 30-50+ |
| Same doctor every visit | 100% | ~40% |
| Consultation time | 60-90 min | 15-20 min |
| Aftercare | WhatsApp 30-day | Standard only |
How is RE:BERRY Myeongdong different from other Seoul jaw slimming clinics?
3-5 palpation-guided injection points per side at RE:BERRY Myeongdong with documented asymmetry correction — 40% of Korean patients need different units left vs right, an adjustment high-volume Seoul chains rarely provide due to time constraints:
| Feature | RE:BERRY | Large Chain |
|---|---|---|
| Injection points/side | 3-5 mapped | 1-2 standard |
| Asymmetry dosing | Individual | Equal both sides |
| Language support | 8 languages | Korean + English |
Can I fly home the same day after masseter reduction Korea at RE:BERRY Myeongdong?
24 hours recommended wait before flying after masseter reduction in Korea at RE:BERRY Myeongdong. Stay upright 4 hours post-injection to prevent toxin migration. 95% of patients report zero bruising. Many combine masseter Botox with forehead botox before departing Seoul in the same session to save trip days.
What are the side effects of masseter reduction in Korea and how safe is it?
15% of RE:BERRY Myeongdong patients report mild injection-site soreness lasting 24-48 hours after masseter reduction Korea, while 20% notice transient chewing fatigue with hard foods during weeks 1-3. Zero serious complications recorded at RE:BERRY using the anatomically guided multi-point technique that avoids the zygomatic nerve branch:
| Side Effect | Frequency | Duration |
|---|---|---|
| Injection soreness | 15% | 24-48 hours |
| Chewing fatigue (hard foods) | 20% | Weeks 1-3 |
| Minor bruising | 5% | 3-5 days |
| Serious complications | 0% | N/A |
How many days in Seoul do I need for masseter reduction Korea at RE:BERRY Myeongdong?
1 day is all you need for masseter reduction in Korea — Botox takes 5-10 minutes with zero downtime at RE:BERRY Myeongdong. Walk-ins accepted 365 days. 90% of international patients combine it with the 3-day Seoul beauty itinerary for additional treatments during their Korea trip before departing.
What aftercare does RE:BERRY provide for masseter reduction Korea patients returning home?
30-day complimentary remote aftercare via WhatsApp (+82-10-5719-2084) after masseter reduction in Korea at RE:BERRY Myeongdong. Share progress photos at weeks 2, 4, and 6 for Dr. Baek’s evaluation. 70% of returning patients see peak V-line results at 6-8 weeks with 5-10mm jaw narrowing. Many also book V-line lifting for comprehensive maintenance.
Why choose RE:BERRY Myeongdong for masseter reduction in Korea over other clinics?
30,000+ treatments of experience at RE:BERRY Myeongdong with Dr. Baek’s 10-year masseter reduction specialization, KFDA serial-verified toxin, 8-language support, and 2-minute Myeongdong Station access. Our per 50U price V-line cases.
Book Your Masseter Reduction in Korea at RE:BERRY Myeongdong
Achieve a slim jawline with expert masseter reduction in Korea at RE:BERRY Myeongdong. per 50U, free consultation with Dr. Baek, 5-minute treatment, zero downtime, 365 days open.
Seoul’s Myeongdong Now Has a Clinic Where Tourists Get K-Beauty Treatments Between Shopping — Business Wire, 2026-04-13
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How to Find RE:BERRY Myeongdong
2 minutes from Myeongdong Station Exit 8. Premium flagship space with an all-black entrance you can't miss.
RE:BERRY Clinic Myeongdong
5, Myeongdong 10-gil, Jung-gu, Seoul
서울시 중구 명동10길 5
Also available at: Gangnam · Incheon Airport














