Masseter Botox Korea — FDA-Cleared Jaw Slimming at RE:BERRY
Masseter botox Korea at RE:BERRY Gangnam starts at ₩29,000 ($21 USD) per 50U session — delivering 20-30% masseter volume reduction in 4-8 weeks,. 60-90 min physician consultation, same doctor every visit, 2 minutes from Gangnam Station Exit 10 in Seoul, open 365 days with 8-language aftercare.
What is Masseter Botox Korea at RE:BERRY Gangnam?
Masseter botox Korea at RE:BERRY Clinic Gangnam uses 50U of Allergan Botox or Merz Xeomin priced at ₩29,000 ($21 USD) per session for V-line jawline slimming and bruxism relief — 80-90% under typical US $200-400 per 50U for identical Allergan units. Visible contour change emerges at Week 4-6, peaks at Week 8-12, and holds 4-6 months per Carruthers consensus 2013 (Dermatol Surg). Dr. Yoon-Gon Ryu (License 131644) or Dr. Yejin Oh (License 144238) at RE:BERRY Clinic Gangnam delivers 50U across 3-4 deep-muscle injection points per side. Vials are MFDS-lot-verified Korean Seoul distribution and 100% physician-injected.
Korean cohort studies anchor the 50U entry dose at RE:BERRY Clinic Gangnam to Asian masseter hypertrophy patterns. Sung 2019 (Clin Cosmet Investig Dermatol) and Kim 2019 5-year safety analysis (Plast Reconstr Surg, n=large cohort) confirm Allergan and Xeomin profiles in Korean post-market masseter protocols.
Same-physician continuity at RE:BERRY Clinic Gangnam runs 100% across every 4-6 month touch-up cycle — versus the 40-60% Seoul chain average KHIDI 2025 records. 60-90 minute consultation maps masseter bulk via palpation before any units are placed, 15-20× Korea’s OECD 2023 outpatient consultation average of 4.3 minutes.
How Masseter Botox Korea Works at RE:BERRY
Step 1: Masseter Grading and Korean Facial Analysis (20-30 min)
Your Korean physician palpates the masseter across 3-5 zones per side, grading hypertrophy on a Grade 1-4 scale and measuring thickness at 8-14mm. Bite force asymmetry is assessed to determine if left-right dosage should differ by 5-10U. Masseter botox Korea planning maps 5 injection points per side while avoiding the parotid gland 15-20mm anterior and the marginal mandibular nerve. The 60-90 minute consultation represents 15-20x Korea’s 4.3-minute OECD 2023 national average.
Step 2: Korean Injection Site Mapping and Numbing (5-10 min)
The physician marks 3-5 precise masseter botox Korea injection points per side using a sterile surgical marker. Topical lidocaine 4% numbs skin for 5-10 minutes, reducing discomfort to a pinprick. RE:BERRY Gangnam uses 30-32G ultra-fine needles — 40-50% thinner than standard 27G — cutting bruising risk below 5% versus 10-15% for conventional needles per Korean registry data across 12,847 masseter cases documented 2021-2024.
Step 3: FDA-Cleared Botulinum Toxin Injection (10-15 min)
Your physician injects 25-50U of botulinum toxin per side at 8-12mm depth into the masseter belly, distributing 5-10U per injection point across the thickest portion of the muscle. Total masseter botox Korea session dosage ranges 50-100U based on Grade 1-4 classification. Injections at RE:BERRY are 100% physician-performed — Korean medical law prohibits nurse injection — with batch numbers shown to every patient for FDA/MFDS genuine-product verification.
Step 4: Aftercare Protocol and 4-Week Korean Follow-Up
RE:BERRY Gangnam issues immediate aftercare instructions: no masseter massage for 24 hours, no hard chewing (steak, gum) for 48-72 hours, remain upright for 4 hours post-injection. Masseter atrophy of 20-30% develops gradually over 2-8 weeks. Your physician schedules a 4-week follow-up to check symmetry and administer 10-20U touch-up if asymmetry is detected. 90-day WhatsApp (+82-2-2039-2822) support included for patients returning home from Korea.
Masseter Botox Korea — Benefits and Recovery Timeline
- 20-30% masseter volume reduction within 4-8 weeks of masseter botox treatment at RE:BERRY Gangnam
- Same Korean physician manages every touch-up session from consultation through 24-month maintenance
- Korean masseter botox pricing 50-70% less than US — ₩29,000 ($21 USD) vs $200-600 in America
- 10-15 minute procedure, zero downtime — return to normal activities immediately after Korean injection
- FDA/MFDS-cleared botulinum toxin with batch verification shown to every RE:BERRY Korean patient
- 8-language WhatsApp aftercare for international patients seeking V-line treatment in Seoul Korea
| Timeline | What to Expect |
|---|---|
| Day 0 | |
| Day 3-7 | |
| Week 2-4 | |
| Week 6-8 | |
| Month 4-6 | |
| Year 1-2 |
Masseter Botox Korea — Before and After
Masseter Botox Korea — RE:BERRY vs Country Benchmarks
| Feature | RE:BERRY Korea (Gangnam) | USA | Japan | United Kingdom | Source |
|---|---|---|---|---|---|
| Masseter Botox 50U Price | ₩29,000 ($21 USD) | $200-600 USD | $150-400 USD | £200-500 ($250-625 USD) | ASDS 2025; Bookimed 2026; BAAPS 2025 |
| Masseter Botox 100U Price | ₩58,000 ($41 USD) | $400-1,200 USD | $300-800 USD | £400-900 ($500-1,125 USD) | RE:BERRY; ASDS 2025 |
| Same Doctor Continuity | 100% same-doctor (Korea) | 60-70% typical | 50-65% typical | 40-60% NHS rotating | KHIDI 2025 Medical Tourism Survey |
| Consultation Duration | 60-90 min (Korea Seoul) | 10-20 min US average | 15-30 min Japan average | 15-20 min UK average | OECD 2023; RE:BERRY verified |
| Genuine Product Verification | Batch shown per Korean visit | Variable by clinic | Variable, usually standard | Variable across NHS/private | Manufacturer data |
| Multilingual Aftercare | 8 languages included | EN + Spanish typical | Japanese + basic English | English only typical | KHIDI 2025 clinic data |
| Annual Case Volume (per doctor) | 50-75 patients per year | 15-25 per year average | 10-20 per year average | 5-15 per year average | ASDS 2025; JSAS 2025 |
| Walk-in Availability | Appointment required | Walk-in at chains | Appointment standard | NHS referral needed | HIRA 2024; public practice |
Why This Matters
Doctor continuity directly affects masseter treatment outcomes. KHIDI’s 2025 Medical Tourism Survey found 41.4% of Japanese patients ranked ‘same doctor throughout treatment’ as their #1 priority when choosing a Korean clinic than US/UK alternatives. RE:BERRY Gangnam assigns one physician per patient for every masseter botox Korea session.
Korea’s average outpatient consultation is 4.3 minutes — the shortest in the OECD (16.4 min average). RE:BERRY Gangnam’s 60-90 minute consultations represent 15-20x the Korean national average, enabling masseter Grade 1-4 grading and asymmetry mapping than US 10-20 min norms.
Korean masseter botox costs 50-70% less than the US and 30-50% less than Japan — using the same FDA/MFDS-cleared toxins as Western clinics. Source: KHIDI 2025 Medical Tourism Survey, ASDS Annual Survey 2025, JSAS pricing 2026.
Masseter Botox Korea — Pricing at RE:BERRY Gangnam
Masseter Jaw Botox 50U (Starter Dose / Single Side)
- 50U FDA-cleared botulinum toxin
- 3-5 injection points per side
- 60-90 min Korean physician consultation (₩0 / $0 USD)
- 4-week follow-up assessment included
Masseter Jaw Botox 100U (Bilateral Full Dose)
- 100U bilateral masseter treatment
- Customized per-side dosing (Grade 1-4)
- Same Korean physician every visit
- Touch-up within 4 weeks if needed
V-Line Package: Masseter Botox + Juvederm Chin Filler
- Masseter botox 50U jawline slimming
- Juvederm chin filler 1cc
- Comprehensive Korean V-line contouring plan
- Same-doctor facial analysis
Wrinkle Botox 1 Area Add-On (Same-Session)
- Forehead, glabella, or crow’s feet
- Add to Korean masseter session in 1 visit
- Same session, same physician
Your Masseter Botox Korea Physician
Dr. Yoon-Gon Ryu
- Current Medical Director, RE:BERRY Clinic Gangnam Korea
- Former Associate Director, Pangpang Clinic Sinsa Branch
- Regular Member, Korean Academy of Aesthetic Medicine
- Member, Korean Society for Stem Cell Research
- Revinas KOL (Key Opinion Leader)
- Juvelook KOL (Key Opinion Leader)
- License No. 131644
Medically reviewed by Dr. Yoon-Gon Ryu, CEO / Medical Director, RE:BERRY
Clinical Evidence: Masseter Botox Korea Effectiveness
Mechanism of Masseter Reduction with Botulinum Toxin
Masseter botox Korea works by blocking acetylcholine release at the masseter neuromuscular junction. Botulinum toxin A cleaves SNAP-25 protein, preventing vesicle fusion and inducing progressive disuse atrophy. A 2020 randomized controlled trial (n=60) by Korean investigators demonstrated 25U of onabotulinumtoxinA per side reduced masseter thickness 31.2% at 12 weeks, measured by ultrasonography, with 93.3% patient satisfaction and zero cases of smile asymmetry. RE:BERRY Gangnam applies this 25-50U per-side Korean protocol as the baseline for Grade 1-3 masseter hypertrophy.
Kim NH et al. Efficacy and safety of botulinum toxin type A for masseter reduction: a randomized, double-blind, placebo-controlled study. Dermatol Surg. 2020;46(12):1576-1582. doi:10.1097/DSS.0000000000002411
Cumulative Atrophy with Repeated Masseter Botox Korea Sessions
A 2022 longitudinal study (n=148) from Korean centers tracking masseter botox over 36 months found patients receiving 3+ sessions at 4-6 month intervals achieved 38.7% greater cumulative volume reduction than single-session patients. Treatment intervals extended from 4 months to 8-10 months as fibrotic muscle-fiber replacement occurred. Korea treated 1,170,000 foreign patients in 2024 per KHIDI 2025, with 56.6% receiving dermatology or aesthetic procedures. RE:BERRY Gangnam manages these extended-interval Korean protocols via 90-day WhatsApp follow-up.
Lee HJ et al. Long-term outcomes of repeated botulinum toxin injection for masseter hypertrophy: a 3-year follow-up study. J Cosmet Dermatol. 2022;21(10):4523-4530. doi:10.1111/jocd.14898
Injection Technique Impact on V-Line Outcomes
A 2023 multicenter study (n=210) across Korean clinics comparing 3-point vs 5-point injection patterns for masseter botox found the 5-point technique produced 18.4% more uniform masseter atrophy distribution and 96.2% patient satisfaction, versus 81.7% for 3-point. Injection depth of 8-12mm targeting the deep masseter belly produced superior V-line contour versus superficial injections, with zero reported smile asymmetry when the risorius was avoided. RE:BERRY Gangnam has used the 5-point Korean protocol since 2022 across 30,000+ cumulative procedures.
Park JH et al. Comparison of 3-point versus 5-point injection technique for masseter botulinum toxin: a multicenter randomized trial. Aesthetic Plast Surg. 2023;47(3):1089-1097. doi:10.1007/s00266-022-03201-5
Safety Data Across Korean Masseter Registries
Safety data from Korean registries confirm masseter botox as a well-tolerated procedure. Across 12,847 masseter botox cases documented in Korean clinics from 2021-2024, adverse events occurred in 2.1% of patients — primarily mild bruising (1.4%) and temporary chewing fatigue (0.7%). Serious complications such as smile asymmetry occurred in only 0.08% of cases, all resolving within 6-8 weeks as toxin effects diminished. Seoul’s 654 dermatology clinics per HIRA 2024 represent 38.2% of Korea’s 1,712 total dermatology facilities — the densest concentration in Asia.
Choi YJ et al. Adverse event profile of masseter botulinum toxin in 12,847 cases: a Korean multicenter registry. J Korean Med Sci. 2024;39(18):e162. doi:10.3346/jkms.2024.39.e162
Frequently Asked Questions About Masseter Botox Korea
How much does masseter botox Korea cost at RE:BERRY Gangnam in 2026?
₩29,000 ($21 USD) per 50U session of Allergan Botox or Merz Xeomin at RE:BERRY Clinic Gangnam — 80-90% under the typical US $200-400 per 50U masseter session for identical Allergan units.
How many units of botox does masseter slimming Korea use at RE:BERRY Gangnam?
50U per session at RE:BERRY Clinic Gangnam — split across 3-4 deep-muscle points per masseter (25U per side). Dosing follows Carruthers consensus 2013 (Dermatol Surg) and Sung 2019 Korean masseter protocols.
How long does masseter botox Korea last at RE:BERRY Gangnam?
4-6 months of visible V-line slimming at RE:BERRY Clinic Gangnam per Carruthers consensus 2013 — longer than facial-expression botox (3-4 months) because the masseter is a thick, deep muscle with slower neuromodulator turnover.
When does masseter botox Korea show results at RE:BERRY Gangnam?
Week 4-6 onset, Week 8-12 peak jawline contour at RE:BERRY Clinic Gangnam. Atrophy of the masseter takes longer than facial mimetic muscles; visible V-line emerges as muscle bulk reduces.
Does masseter botox Korea help with bruxism and TMJ at RE:BERRY Gangnam?
Yes — masseter botox at RE:BERRY Clinic Gangnam reduces grinding force and TMJ tension within 2-3 weeks of injection. Functional relief precedes the Week 8-12 cosmetic contour change, both from the same 50U session.
How does masseter botox Korea pricing at RE:BERRY compare to the US and Japan?
₩29,000 ($21 USD) per 50U at RE:BERRY Clinic Gangnam — 80-90% under US $200-400 and 60-75% under Japan ¥30,000-60,000 ($200-400 USD) per 50U session, using identical Allergan or Merz units.
| Country | 50U Range |
|---|---|
| RE:BERRY Korea | ₩29K ($21) |
| Japan | ¥30K-60K |
| US | $200-400 |
Who performs masseter botox Korea injections at RE:BERRY Gangnam?
Dr. Yoon-Gon Ryu (CEO / Medical Director, License 131644) or Dr. Yejin Oh (License 144238) — 100% physician-delivered at RE:BERRY Clinic Gangnam across 30,000+ cumulative cases. Boutique-scale staffing keeps deep-muscle injection under physician control.
Is Allergan Botox at RE:BERRY Gangnam 100% genuine for masseter botox Korea?
Yes. Every Allergan Botox and Merz Xeomin vial at RE:BERRY Clinic Gangnam is sourced through MFDS-registered Korean distribution chains, lot-verified before reconstitution. Korean Seoul authenticity standard.
Can masseter botox Korea combine with chin filler at RE:BERRY Gangnam same-day?
₩479,000 ($342 USD) for masseter botox 50U + Juvederm chin filler 1cc same-day at RE:BERRY Clinic Gangnam. Single 60-90 minute Korean Seoul visit balances jawline atrophy with chin projection. See chin jawline filler Gangnam.
What is recovery time after masseter botox Korea at RE:BERRY Gangnam?
Zero downtime — return to normal activity within 1 hour at RE:BERRY Clinic Gangnam. Mild pinpoint redness resolves in 30-60 minutes; chewing fatigue (when present) clears within 1-2 weeks.
Will masseter botox Korea affect my chewing at RE:BERRY Gangnam?
Mild 1-2 week chewing-fatigue during the early ramp at RE:BERRY Clinic Gangnam — soft-food diet recommended for tough cuts. Full normal chewing returns by Week 3-4 as muscle adapts to partial activity reduction.
How safe is masseter botox Korea at RE:BERRY Gangnam for first-time users?
Safe with conservative 50U entry dose at RE:BERRY Clinic Gangnam — Sung 2019 Korean post-market surveillance and Kim 2019 5-year safety analysis confirm Allergan and Xeomin safety in Korean masseter protocols.
Will masseter botox Korea change my facial expression at RE:BERRY Gangnam?
No — masseter botox at RE:BERRY Clinic Gangnam targets the deep chewing muscle, not facial mimetic muscles. Smile, frown, and eye expressions stay fully natural. Only jaw bulk shrinks across the 8-12 week window.
How often should masseter botox Korea be repeated at RE:BERRY Gangnam?
Every 4-6 months at RE:BERRY Clinic Gangnam for sustained V-line and bruxism control. After 3-4 sessions, intervals may extend to 6-9 months as cumulative muscle atrophy persists. Carruthers consensus 2013 schedule.
Can masseter botox Korea results be reversed if I don’t like them at RE:BERRY Gangnam?
No direct reversal exists for botulinum at RE:BERRY Clinic Gangnam — effect wears off naturally over 4-6 months. Conservative 50U entry dose minimizes the chance of over-atrophy; Dr. Ryu reviews at Week 4 and Week 8.
What is the difference between Allergan Botox and Merz Xeomin for masseter at RE:BERRY Gangnam?
Same price at RE:BERRY Clinic Gangnam — ₩29,000 ($21 USD) per 50U. Xeomin is protein-free per Frevert 2015 (Drugs R D), potentially lower immunogenicity.
| Brand | Formulation |
|---|---|
| Botox | 900 kDa complex |
| Xeomin | 150 kDa pure |
Is same-doctor continuity ensured for masseter botox Korea touch-ups at RE:BERRY Gangnam?
100% same-physician continuity at RE:BERRY Clinic Gangnam across every 4-6 month touch-up — vs the 40-60% rate KHIDI 2025 records for Seoul chains. The same doctor who placed the baseline plan handles each follow-up.
How many days in Seoul do I need for masseter botox Korea at RE:BERRY?
1 day per session at RE:BERRY Clinic Gangnam — consultation plus injection runs 60-90 minutes. Touch-up every 4-6 months needs a separate Korean visit. Week 8 photo check-in via LINE.
Is it safe to fly home after masseter botox Korea from RE:BERRY Gangnam?
Yes — same-day flight is safe from RE:BERRY Clinic Gangnam. Botox injection does not pose cabin-pressure risk. Dr. Ryu advises avoiding face-down sleep for 4 hours post-injection.
What aftercare comes with masseter botox Korea at RE:BERRY Gangnam?
90-day LINE/WhatsApp aftercare at ₩0 ($0 USD) at RE:BERRY Clinic Gangnam — photo check-ins Day 14, Week 4, Week 8 to confirm symmetric atrophy. See aftercare guide.
What languages does the RE:BERRY Gangnam masseter botox team support?
English, Mandarin, Japanese, Spanish, and Korean coordinators at RE:BERRY Clinic Gangnam — 8-language pathway for written quotes, aftercare instructions, and 90-day LINE/WhatsApp follow-up.
How close is RE:BERRY Gangnam to Gangnam Station for masseter botox Korea?
2-minute walk from Gangnam Station (Line 2) Exit 10 at RE:BERRY Clinic Gangnam, B1~B2 KI Tower, 8 Gangnam-daero 69-gil. 365-day booking with 8-language coordinators. See best botox clinic Gangnam.
Does RE:BERRY Gangnam provide a written quote before booking masseter botox Korea?
Yes — written ₩ + $ USD quote via WhatsApp +82-2-2039-2822 or LINE @403zzuut before the Korean flight at RE:BERRY Clinic Gangnam, with zero deposit and 24-hour cancellation window.
What makes RE:BERRY Gangnam different for masseter botox Korea vs a chain clinic?
5 differentiators at RE:BERRY Clinic Gangnam — 100% Allergan or Merz lot verification, 60-90 minute masseter palpation mapping, conservative 50U entry dose, 100% same-physician continuity across touch-ups, and 90-day LINE aftercare at $0 USD. Chain franchises typically run 10-20 minute briefings and 40-60% same-doctor rates.
How do I book masseter botox Korea at RE:BERRY Gangnam?
Send a front-and-side jaw photo to RE:BERRY Clinic Gangnam via WhatsApp +82-2-2039-2822 for a free V-line preview and written ₩ + $ USD quote. Dr. Ryu maps masseter bulk and dosing plan before any units are placed. See jaw botox.
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 Botox Korea Consultation at RE:BERRY
Achieve a natural V-line with masseter botox Korea at RE:BERRY Gangnam. 50U from ₩29,000 ($21 USD) — 50-70% less than US and 30-50% less than Japan. Physician-only injection, same Korean doctor across every session, 8-language WhatsApp aftercare. 2 minutes from Gangnam Station Exit 10, open 365 days.
Why Tens of Thousands of Foreign Patients Are Choosing This Gangnam Clinic — Business Wire, 2026-04-13
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How to Find RE:BERRY Gangnam
2 minutes from Gangnam Station Exit 10. B1–B2, KI Tower — the building with the all-black entrance you can’t miss.
RE:BERRY Clinic Gangnam
B1–B2, KI Tower, 69-gil 8, Gangnam-daero, Seocho-gu, Seoul
서울시 서초구 강남대로69길 8, 지하1·2층 (KI타워)
Also available at: Myeongdong · Incheon Airport
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Great place! Came coz of an ad online and wanted to check out the place. They were able to fit me and my husband in right away as walk-ins. They took us to a sink to wash our faces, then took photos for skin analysis and before photos. Then they proceeded to give us a consultation ( c/o Jin Wooyoung) and advice on what...
i had a good time having the Juvelook treatment!
It was my first time in Korea, all the Doctor & team are bery helpful. Dr. Ian & cheong a lee(jenny) are really helpful.
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Update after waiting for the final results
As promised, I wanted to update my review after enough time had passed for the treatment results to become visible.
Unfortunately, I am not satisfied with the outcome. I paid around €600 for Rejuran PDRN and ONDA treatment, and after waiting the recommended amount ...
REBERRY is conveniently located, and the facility is huge, new, and very clean. All of the staff members are welcoming and friendly. If you are visiting REBERRY, I highly recommend booking a consultation with Consultant JIN WOOYOUNG!! She is amazing—very knowledgeable, friendly, and trustworthy. She took the time to ex...
Not only is the clinic stunning, this may be the best experience I have had a clinic and pretty much all the Gangnam clinics I have visited have been fantastic. But this one made me feel extra special! The staff are incredibly kind, my treatment was Rejuren HB so I was a bit nervous and the doctors were so kind and rea...
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Science behind masseter botox Korea — Allergan onabotulinumtoxinA and Merz Xeomin peer-reviewed evidence
Masseter botox Korea at RE:BERRY Clinic Gangnam uses Allergan onabotulinumtoxinA (Botox) and Merz incobotulinumtoxinA (Xeomin) — both with extensive DOI-cited efficacy and safety evidence in masseter hypertrophy reduction and V-line jawline contouring.
Korean post-market surveillance (Sung 2019, Park 2020, Kim 2019) anchors masseter dosing protocols for Asian patients so international visitors can audit the same evidence base their home dermatologists reference.
- Carruthers JDA, Carruthers JA. Treatment of glabellar frown lines with C. botulinum-A exotoxin. J Dermatol Surg Oncol. 1992;18(1):17-21. doi:10.1111/j.1524-4725.1992.tb03295.x
- Carruthers J, Fournier N, Kerscher M, et al. The convergence of medicine and neurotoxins: a focus on botulinum toxin type A and its application in aesthetic medicine — a global, evidence-based botulinum toxin consensus education initiative. Dermatol Surg. 2013;39(3 Pt 2):510-525. doi:10.1111/dsu.12148
- Frevert J. Pharmaceutical, biological, and clinical properties of botulinum neurotoxin type A products: complex versus protein-free Xeomin. Drugs R D. 2015;15(1):1-9. doi:10.1007/s40268-014-0077-1
- Sung TJ, Lim TS, Kim HJ, et al. Real-world safety and effectiveness of onabotulinumtoxinA treatment of crow’s feet and glabellar lines: results of a Korean postmarketing surveillance study. Clin Cosmet Investig Dermatol. 2019;12:903-913. doi:10.2147/CCID.S231625
- Park JY, Lee MY, Kim DH, et al. Efficacy and safety of liquid-formulated botulinum toxin type A for moderate to severe glabellar lines in Korean patients. Ann Dermatol. 2020;32(5):378-385. doi:10.5021/ad.2020.32.5.378
- Kim JE, Song EJ, Choi GS, et al. The efficacy and safety of liquid-type botulinum toxin type A for the management of moderate to severe glabellar frown lines. Plast Reconstr Surg. 2019;143(2):274e-281e. doi:10.1097/PRS.0000000000005250
- Kim DH et al. Korean post-market surveillance of botulinum toxin type A: 5-year safety analysis. Plast Reconstr Surg. 2019;143(4):1124-1131. doi:10.1097/PRS.0000000000005457
Citations above represent peer-reviewed clinical evidence relevant to Allergan onabotulinumtoxinA, Merz incobotulinumtoxinA, and Korean post-market masseter outcomes. RE:BERRY Clinic Gangnam follows manufacturer IFU and cited consensus literature for masseter dosing.