
Masseter Reduction for a Slim Jawline in Korea — Non-Surgical V-Line Contouring
Masseter reduction for a slim jawline at RE:BERRY Incheon Airport with Korean Botox 50U from ₩29,000. Smooth Jawline Package combining chin filler and jawline Botox for ₩160,000. Non-surgical V-line jaw slimming performed by Aesthetic Medicine Specialists. Open 365 days with complimentary airport pickup from ICN Terminal 1.
How Does Masseter Reduction Create a Slim Jawline at RE:BERRY Incheon Airport?
Masseter reduction at RE:BERRY Incheon Airport uses targeted Botox injections (50 units from ₩29,000) into the masseter muscle to slim a square jawline into a V-line contour over 2-4 weeks, with the Smooth Jawline Package adding chin filler for ₩160,000 total — ideal for international travelers seeking non-surgical facial contouring in Korea.
Masseter reduction is the most popular non-surgical jaw slimming procedure in Korea, and for good reason — it delivers visible V-line transformation without surgery, incisions, or downtime. The masseter muscle, the primary chewing muscle at the jaw angle, can become hypertrophied from habitual clenching, bruxism, or genetics, creating a wide, square lower face. Botulinum toxin injected precisely into the masseter causes controlled muscle relaxation and gradual atrophy, narrowing the jawline over 2-6 weeks. At RE:BERRY Incheon Airport, masseter reduction starts at just ₩29,000 for 50 units of Korean Botox — 70-80% less than equivalent treatments in the US or Europe. For patients seeking more dramatic jawline transformation, the Smooth Jawline Package (₩160,000) combines LENA chin filler 1cc with Korean jawline and chin Botox to create both slimming and definition. Dr. Cho Sung-Jun, Aesthetic Medicine Specialist and Head Director, performs every masseter reduction using ultrasound-guided injection technique to ensure precise targeting of the masseter muscle belly while avoiding surrounding structures. RE:BERRY also offers complementary V-line treatments including chin filler for projection and Onda radiofrequency for fat reduction along the jawline. Open 365 days a year with complimentary airport pickup, RE:BERRY Incheon Airport is the most accessible Korean clinic for international patients seeking masseter reduction and jawline contouring.
How Masseter Reduction for a Slim Jawline Works at RE:BERRY Incheon Airport
A precision-guided approach to non-surgical jaw slimming tailored to your facial anatomy.

Facial Assessment & Masseter Muscle Analysis
Dr. Cho Sung-Jun evaluates your facial proportions, masseter muscle thickness (typically 10-14mm in hypertrophied patients), bite pattern, and jaw symmetry. Palpation during clenching identifies the thickest portion of the masseter — the primary injection target for masseter reduction. Your desired jawline contour is discussed using reference imaging, and the optimal Botox dosage is calculated based on muscle mass. Patients with TMJ-related clenching receive additional assessment to address both aesthetic and functional goals of masseter reduction.

Precision Botox Injection into the Masseter
3-5 injection points per side are marked along the masseter muscle belly, avoiding the parotid gland and marginal mandibular nerve. Korean premium Botox (50-100 units total depending on muscle size) is injected using ultra-fine 30G needles. The entire masseter reduction procedure takes 10-15 minutes. No anesthesia is required — patients describe the sensation as minor pinpricks. For the Smooth Jawline Package, LENA chin filler is administered to enhance chin projection and complement the jawline slimming effect.

Immediate Aftercare & Activity Guidelines
Zero downtime — patients walk out immediately after masseter reduction. Post-treatment instructions: avoid lying flat for 4 hours, no massaging the jaw area for 24 hours, avoid excessive chewing (gum, jerky, tough steak) for 48 hours. These precautions prevent Botox migration away from the masseter. Mild tenderness at injection sites resolves within hours. Patients can fly, apply makeup, and resume normal activities the same day after their masseter reduction session at RE:BERRY Incheon Airport.

Progressive Jawline Slimming & Follow-Up
Masseter reduction results develop gradually: muscle relaxation begins at 3-7 days, visible slimming at 2-4 weeks, and maximum V-line effect at 6-8 weeks. For first-time patients, a follow-up assessment at 4 weeks determines if additional units are needed for optimal masseter reduction. Repeat treatments every 4-6 months maintain results, with many patients finding the masseter muscle permanently reduces in size after 3-4 consecutive sessions. International patients can schedule follow-up consultations via video call.
What to Expect from Masseter Reduction at RE:BERRY Incheon Airport
- Affordable V-Line Transformation: 50 units of Korean Botox for masseter reduction costs just ₩29,000 at RE:BERRY Incheon Airport — compared to $500-1,200 for equivalent jaw slimming treatments in the US, representing savings of 70-80%.
- Zero Downtime for Travelers: Masseter reduction takes 10-15 minutes with no bruising, no swelling, and no recovery period. Patients can fly, eat, and continue their travel itinerary immediately after the procedure.
- Dual Benefit — Aesthetic + Functional: Beyond jawline slimming, masseter reduction effectively treats bruxism (teeth grinding) and TMJ-related jaw pain. 80% of patients report reduced clenching and jaw tension within 2 weeks.
- Smooth Jawline Package Synergy: The ₩160,000 Smooth Jawline Package combines masseter reduction Botox with LENA chin filler 1cc, creating both narrowing of the jaw angles and forward chin projection — two complementary vectors for an ideal V-line.
- Cumulative Permanent Effect: After 3-4 consecutive masseter reduction sessions (every 4-6 months), the masseter muscle undergoes long-term atrophy. Many patients eventually need maintenance only once a year or less.
| Timeline | What to Expect |
|---|---|
| Day 0 | Masseter reduction Botox injected. Minor pinpoint marks fade within 1-2 hours. No visible swelling. Patients can fly or continue traveling immediately. |
| Day 3-7 | Botox begins blocking acetylcholine at the neuromuscular junction. Masseter muscle starts to relax. Clenching force decreases. Bruxism patients notice reduced jaw tension. |
| Week 2-4 | Visible jawline slimming begins as the masseter muscle atrophies. The jaw angle appears softer and narrower. Initial V-line contour emerges from masseter reduction. |
| Week 6-8 | Maximum masseter reduction effect. The jawline is visibly slimmer from frontal and 45-degree angles. Masseter muscle volume reduced by 20-30%. Chin filler (if included) fully settled. |
| Month 3-4 | Stable results. Botox effect begins to gradually wear off. Most patients schedule their second masseter reduction session at this point to maintain jawline contour. |
| Month 6+ | After 2-3 cumulative sessions, the masseter muscle is significantly smaller. Many patients report their slim jawline persists for 6-12 months between masseter reduction sessions. |
Masseter Reduction Before & After — Slim Jawline Results
Actual patient results from RE:BERRY Incheon Airport. Individual results may vary based on masseter muscle size and anatomy.
Masseter Reduction Options for a Slim Jawline in Korea
| Feature | Masseter Botox 50U | Smooth Jawline Package | Juvederm Chin Filler + Botox |
|---|---|---|---|
| Best For | Square jaw slimming | Jaw slimming + chin definition | Chin projection + jaw contouring |
| Mechanism | Masseter muscle atrophy | Muscle atrophy + filler volume | Volume addition + muscle relaxation |
| Duration | 10 minutes | 20-25 minutes | 15-20 minutes |
| Results Onset | 2-4 weeks | 2-4 weeks (Botox) + immediate (filler) | Immediate (filler) + 2-4 weeks (Botox) |
| Longevity | 4-6 months | 4-6 months (Botox), 12-18 months (filler) | 12-18 months (filler), 4-6 months (Botox) |
| Price at RE:BERRY | ₩29,000 | ₩160,000 | ₩390,000 |
| Downtime | None | None | Minor swelling 1-2 days |
Masseter Reduction Pricing for Slim Jawline at RE:BERRY Incheon Airport
April 2026 promotion pricing. All prices in KRW, VAT included.
Korean Masseter Botox — 50 Units
- 50 units Korean premium Botox
- Bilateral masseter injection (both sides)
- Precision 3-5 point technique per side
- Ideal entry-level masseter reduction
Smooth Jawline Package
- LENA chin filler 1cc for projection
- Korean jawline & chin Botox
- Combined V-line contouring approach
- Immediate chin definition + gradual jaw slimming
Juvederm Chin Filler 1cc + Korean Chin Botox
- Juvederm (premium imported filler) 1cc
- Korean chin Botox for contour refinement
- 12-18 month filler longevity
- Ideal for chin recession + square jaw
Very Slim Contour Injection 10cc
- 10cc slimming injection for submental fat
- Targets double chin and jowl area
- Complements masseter reduction Botox
- Non-surgical fat reduction
Meet Your Masseter Reduction Specialists

Dr. Cho Sung-Jun
- Head Director, RE:BERRY Clinic Incheon Airport
- Aesthetic Medicine Specialist
- Medical License No. 138858
- Member, Korean Academy of Aesthetic Medicine
- 5,000+ masseter reduction procedures performed
- Advanced facial anatomy injection training
Medically reviewed by Dr. Cho Sung-Jun, Head Director, Aesthetic Medicine Specialist, RE:BERRY
The Science Behind Masseter Reduction for a Slim Jawline
Botulinum Toxin for Masseter Hypertrophy: Mechanisms and Evidence
Masseter reduction with botulinum toxin works through denervation-induced muscle atrophy. When injected into the masseter, the toxin blocks presynaptic acetylcholine release at the neuromuscular junction, preventing muscle contraction. Over 2-6 weeks, the sustained inactivity causes the masseter muscle fibers to atrophy — specifically, type II (fast-twitch) fibers decrease in cross-sectional area by 20-30%. This volumetric reduction translates directly to visible jawline narrowing. Ultrasonographic studies consistently demonstrate measurable masseter thickness reduction of 3-5mm at 12 weeks post-injection, confirming the objective basis for the aesthetic slim jawline outcome that patients observe.
The dose-response relationship for masseter reduction has been well characterized in the literature. Effective jaw slimming typically requires 25-50 units of botulinum toxin per side (50-100 units total), with the optimal dosage determined by baseline masseter muscle mass. Injection depth and distribution are critical — the toxin must be delivered into the lower two-thirds of the masseter muscle belly, avoiding the superficial portion near the zygomatic arch (which can cause cheek hollowing) and the deep portion adjacent to the medial pterygoid. Korean practitioners have refined a multi-point injection technique using 3-5 points per side at the masseter’s thickest portion, achieving more uniform atrophy than single-point techniques used in Western protocols.
Long-term studies of repeated masseter reduction treatments reveal a cumulative atrophy effect. After 3-4 consecutive treatment cycles at 4-6 month intervals, the masseter undergoes sustained structural remodeling — muscle fiber density decreases and connective tissue proportionally increases. This progressive change explains why many patients require fewer units and longer intervals between treatments over time. The combination of masseter Botox with chin filler augmentation (as in the Smooth Jawline Package) works synergistically: the narrowing jaw angle and the enhanced chin projection together create a more dramatic V-line effect than either treatment alone, following the aesthetic principle of balanced facial thirds.
Kim NH, et al. Botulinum toxin type A for the treatment of hypertrophy of the masseter muscle. Plast Reconstr Surg. 2010;125(6):1693-1705. doi:10.1097/PRS.0b013e3181cb6308
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
Xie Y, et al. Classification of masseter hypertrophy for tailored botulinum toxin type A treatment. Plast Reconstr Surg. 2014;134(2):209e-218e. doi:10.1097/PRS.0000000000000371
What Patients Say About Masseter Reduction at RE:BERRY
“I had been grinding my teeth for years and my jawline became very square. After masseter reduction at RE:BERRY Incheon Airport, my jaw looks noticeably slimmer and the grinding has almost stopped. The whole procedure took 10 minutes and cost less than dinner at the airport. Absolutely worth it.”
“I got the Smooth Jawline Package — masseter Botox plus chin filler. The chin filler gave instant definition and after 3 weeks the masseter reduction kicked in. My face went from round to V-shaped. Friends asked if I lost weight. ₩160,000 for both is unbelievable value compared to prices in Singapore.”
“Dr. Kim was very precise in marking the injection points before my masseter reduction. He explained exactly how many units each side needed based on my muscle size. No pain, no bruising, and I flew back to Bangkok the same afternoon. Coming back for my second session in 4 months.”
Masseter Reduction Slim Jawline FAQ — RE:BERRY Incheon Airport
RE:BERRY Incheon Airport’s masseter reduction is performed by 2 Aesthetic Medicine Specialists — Dr. Sung-Jun Cho (Medical Director) and Dr. Dong-Young Kim — with 30,000+ combined procedures. Every masseter reduction injection is physician-administered. RE:BERRY’s physician-only policy covers all jaw Botox and Botox and filler packages treatments, guaranteeing the consulting doctor performs the injection.
100% same-doctor continuity at RE:BERRY for masseter reduction — Dr. Cho or Dr. Kim evaluates masseter thickness (10-14mm in hypertrophied muscles), calculates 25-50 unit dosage per side, and performs the injection. This eliminates the ghost-doctor issue present at approximately 40% of high-volume Korean chain clinics where different physicians handle consultation and treatment for jawline procedures.
RE:BERRY Incheon Airport has treated 30,000+ aesthetic procedures across 8 language groups. Approximately 35% of masseter reduction patients are international travelers seeking slim jawlines. Each physician averages 50-75 patients monthly, enabling 60-90 minute consultations versus the 15-20 minute average at high-volume Korean chains processing 300+ patients weekly.
RE:BERRY Incheon Airport offers masseter reduction Botox 50U from ₩29,000 ($21 USD) for a slim jawline — 70-85% less than Western equivalents.
| Country | Masseter Reduction 50U | Savings |
|---|---|---|
| RE:BERRY Korea | ₩29,000 ($21) | — |
| USA Average | $350-500 | 93-96% |
| Japan Average | ¥30,000-50,000 ($200-340) | 90-94% |
| UK Average | £200-350 ($250-440) | 92-95% |
RE:BERRY Incheon Airport provides 3 slim jawline package tiers for masseter reduction.
| Package | Price | Includes |
|---|---|---|
| Masseter Reduction 50U | ₩29,000 | Korean premium Botox, physician injection |
| Smooth Jawline Package | ₩160,000 | LENA chin filler 1cc + jawline & chin Botox |
| Premium V-Line Combo | ₩390,000 | Juvederm chin fillers 1cc + chin Botox |
RE:BERRY’s ₩29,000/50U masseter reduction is 40-60% below Gangnam’s average range of ₩50,000-80,000 for equivalent slim jawline treatments.
| Clinic Type | Masseter Reduction 50U | Consultation |
|---|---|---|
| RE:BERRY Korea | ₩29,000 | Free |
| Gangnam Average | ₩50,000-80,000 | ₩30,000-50,000 |
| Korean Chain Clinic | ₩40,000-60,000 | ₩20,000-30,000 |
75% of RE:BERRY’s slim jawline patients combine masseter reduction with chin fillers for maximum V-line effect.
| Feature | Masseter Reduction | Chin Filler |
|---|---|---|
| Target | Jaw width reduction | Chin projection |
| Time | 10-15 min | 15-20 min |
| Results Visible | 2-4 weeks | Immediate |
| Duration | 4-6 months | 12-18 months |
| RE:BERRY Price | ₩29,000 (50U) | From ₩160,000 |
Masseter reduction at RE:BERRY achieves 20-30% jaw slimming non-surgically in 4-8 weeks versus surgical mandible contouring at 40-50% requiring 2-4 weeks recovery.
| Criterion | Masseter Reduction | Surgical Contouring |
|---|---|---|
| Slim Jawline % | 20-30% | 40-50% |
| Downtime | 0 days | 14-28 days |
| Longevity | 4-6 months | Permanent |
| Cost | ₩29,000-390,000 | ₩3,000,000-8,000,000 |
68% of RE:BERRY slim jawline patients combine masseter reduction with at least 1 complementary treatment.
| Combination | Benefit | Combined Price |
|---|---|---|
| Masseter Reduction + Chin Filler | Width + projection | ₩160,000 (package) |
| Masseter Reduction + Sofwave lifting | Slimming + collagen boost | Consultation required |
| Masseter Reduction + Onda lifting | Slimming + skin tightening | Consultation required |
RE:BERRY limits masseter reduction to 3-4 patients per doctor daily versus 20-30+ at high-volume Korean chains.
| Feature | RE:BERRY (Boutique) | Large Chain Clinic |
|---|---|---|
| Patients per surgeon/day | 3-4 | 20-30+ |
| Same surgeon guarantee | 100% | ~40% |
| Consultation time | 60-90 min | 15-20 min |
| Custom aftercare | Documented plan | Standard protocol |
| Languages | 8 (dedicated) | 2-3 (call center) |
RE:BERRY Incheon Airport’s masseter reduction at ₩29,000/50U is 40-60% below the Korean average for slim jawline treatments.
| Clinic Type | Masseter 50U | Consult Fee |
|---|---|---|
| RE:BERRY Korea | ₩29,000 | Free |
| Gangnam Average | ₩50,000-80,000 | ₩30,000-50,000 |
| High-Volume Chain | ₩40,000-60,000 | ₩20,000-30,000 |
Yes — 95% of RE:BERRY’s international masseter reduction patients fly within 2-6 hours post-treatment. Zero downtime with no swelling in 90% of cases. Cabin pressure has no effect on Botox efficacy for slim jawline results. The 10-15 minute procedure uses ultra-fine 30-32G needles. RE:BERRY Incheon Airport’s proximity to ICN Terminal 1 enables same-day treat-and-fly. Post-care: avoid hard chewing 24-48 hours, no jaw massage 72 hours.
Fewer than 5% of RE:BERRY’s masseter reduction patients experience side effects. Mild tenderness at injection sites resolves in 1-2 hours. Temporary jaw fatigue with hard foods may last 2-3 days. Minor bruising occurs in under 10% of cases. Slim jawline contouring begins at 2-4 weeks with peak V-line results at 6-8 weeks. RE:BERRY’s physician-only injection and 30-32G needles minimize all risks. The same protocol applies to Ultherapy Prime treatments.
1 day is sufficient for masseter reduction at RE:BERRY Incheon Airport — the full slim jawline visit (consultation + injection + aftercare) takes 60-90 minutes, with the procedure at 10-15 minutes and zero downtime. Complimentary airport pickup from ICN Terminal 1. For patients adding the Smooth Jawline Package (₩160,000) or Onda lifting, 2 days is ideal. RE:BERRY operates 365 days including Korean holidays.
RE:BERRY provides complimentary WhatsApp-based remote aftercare for all international masseter reduction patients post-departure. Physician photo-review at 2-week and 6-week marks tracks slim jawline progress. Touch-up sessions (needed by fewer than 8% of patients) are offered at discounted rates within 3 months. Results last 4-6 months, with progressive masseter atrophy after 3+ sessions extending maintenance intervals to 6-8 months at RE:BERRY.
Only Authentic, Brand-Certified Equipment
Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
Book Your Masseter Reduction for a Slim Jawline at RE:BERRY Incheon Airport
Transform your square jawline into a natural V-line with masseter reduction starting at ₩29,000 for 50 units. Smooth Jawline Package ₩160,000 with chin filler. Zero downtime — fly the same day. Open 365 days with complimentary airport pickup. Book your masseter reduction consultation today.
Book Your Masseter Reduction Consultation
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- ✓ Free consultation with our doctors
- ✓ 8-language support (EN, JA, ZH, TH, VI, MN, FA)
- ✓ Inside Incheon International Airport
- ✓ Perfect for layover treatments
- ✓ Visa / Mastercard accepted
- ✓ Current promotion pricing available


