Is Your Wide Face Caused by Muscles, Not Bones?
Many people assume a wide or square face is a bone structure issue — but in over 60% of cases, the real culprit is masseter muscle hypertrophy. Habitual teeth grinding, jaw clenching, and chewing hard foods thicken the masseter over time, creating a wide lower face visible from both the front and side.
The good news: this muscle-type square jaw responds exceptionally well to botulinum toxin injection. Rappoel Dermatology Clinic in Seoul uses Coretox — a premium Korean-manufactured botulinum toxin — to precisely reduce masseter volume, slimming the lower face naturally within 6–8 weeks.
Why Coretox Instead of Regular Botox?
Coretox is produced by Korean biotech firm Medytox and is entirely free of animal-derived proteins, making it one of the purest formulations available. Its high purity means lower allergy risk and more predictable diffusion — especially important for the masseter, where precision matters for facial symmetry. Compared to traditional Botox or Dysport, Coretox offers tighter control over dosage spread in high-volume muscle areas.
What to Expect: Timeline After Injection
- Week 1–2: Mild tightness or slight swelling at injection site (normal)
- Week 4: Chewing strength begins to decrease noticeably
- Week 6–8: Masseter visibly smaller; jawline looks slimmer from front and side
- Month 4–6: Peak results; repeat treatment recommended to maintain effect
Rappoel Clinic Procedure Overview
- Pre-treatment: Physician palpates masseter thickness and assesses bilateral symmetry
- Topical anesthesia applied for 20 minutes before injection
- Bilateral injection with dose customized to masseter size
- Post-treatment observation: ~30 min, then patient may leave immediately
Post-Treatment Guidelines
- Avoid lying flat or pressing the injection area for 4 hours after treatment
- No strenuous exercise, sauna, or hot bath for 48 hours
- First-time patients receive conservative dosing; top-up available at 3 months
- Patients with bruxism may benefit from combining a night guard for longer-lasting results
Clinic Information
- Address: 5F, 24, Seocho-daero 77-gil, Seocho-gu, Seoul (3 min walk from Gangnam Station Exit 10)
- Contact: WeChat rappoelkr / Line rappoelkr
- Pricing: Quoted individually based on masseter volume and dose required
Frequently Asked Questions
Book Your Masseter Slimming Consultation
📍 77, Seocho-daero, Seocho-gu, Seoul, South Korea
🕐 Mon–Fri 10:00–19:00 · Sat 10:00–17:00
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