The mentalis muscle consists of two small muscles in the chin area, connecting the mandible to the chin skin. During speech, chewing, and lip pursing, the mentalis contracts repeatedly; over time, overactive mentalis muscles cause two problems: (1) Orange-peel chin texture — muscle contraction pulls the skin, creating bumpy ‘peau d’orange’ texture, especially visible when pursing the lips. (2) Tight retracted chin — excessive muscle contraction pulls the chin inward, making it look shorter and retracted, disrupting facial proportions. Causes of chin problems: (1) Expression habits — habitual lip pursing, forceful speech, and malocclusion cause overuse of the mentalis. (2) Aging — reduced skin elasticity makes chin texture more visible. (3) Mandibular retrusion — skeletal structure causing a short, retracted chin. Rappoel Dermatology near Gangnam Station, Seoul, uses Coretox — precise relaxation of the mentalis, with a 5-minute treatment and visibly smoother chin texture and more relaxed contours within 1-2 weeks.
Technical Advantages of Coretox Chin Muscle Relaxation
- Precise mentalis relaxation: After injection into the mentalis, Coretox blocks neuromuscular signaling, relaxing overactive chin muscles — lip pursing and speech no longer over-contract and pull the skin, smoothing the orange-peel texture
- Coretox Korean-origin high-purity advantage: Coretox is 150kDa high-purity toxin with complex proteins removed, reducing antibody and resistance risk. The chin is a delicate movement area — high-purity formulation spreads less, reducing risk of spreading to the lower lip and orbicularis oris causing stiffness
- Fast onset (2-3 days): Coretox clinical data shows average onset of 2-3 days — chin muscles begin relaxing at 3-5 days, texture visibly smoother at 5-7 days, optimal at two weeks
- Fine chin contour adjustment: After mentalis relaxation, the chin no longer contracts inward — it looks more relaxed with more proportionate length, balancing the overall lower third of the face
- Minimally invasive with no recovery: Only 2-4 injection points, completed in 5 minutes — pinholes close in 1 day, no surgery or recovery, doable on a lunch break
Treatment Strategies for Different Chin Issues
- Orange-peel chin (prominent texture): Clear bumpy texture when pursing the lips. Strategy: Coretox 10-20 units in 2-4 points at the central mentalis — texture visibly smooths when pursing after relaxation
- Tight retracted chin type: Constantly tense chin muscles making the chin look retracted and short. Strategy: Coretox 10-20 units to relax the mentalis + HA chin filler for elongation — Botox relaxes the muscle, HA adds length and projection, combination is optimal
- Chin texture + lower lip lines combination: Chin texture with fine lines around the lower lip. Strategy: mentalis Coretox 10-20 units + orbicularis oris Coretox 4-8 units (2 points) — improving both areas
- Retruded chin type: Skeletal structure causing a short, retracted chin with compensatory mentalis over-contraction. Strategy: Coretox 10-15 units to relax the mentalis + HA chin filler (1-2ml) — Botox improves muscle tension, HA rebuilds chin proportion
- Malocclusion-related chin tension type: Malocclusion causing mentalis overuse. Strategy: Coretox mentalis relaxation (10-20 units) + masseter relaxation (25-50 units per side) — dual relaxation improving overall lower-third muscle tension; recommend dental consultation for occlusion correction
Rappoel Chin Coretox Injection Treatment Protocol
- Chin assessment and plan design (5 min): Patient purses lips and speaks to assess muscle activity and texture → assess chin shape and proportion at rest → photograph → establish injection plan (dosage, points)
- Disinfection preparation (2 min): Chin cleansing → alcohol swab disinfection → mark 2-4 injection points (central mentalis area, avoiding lower lip vessels and nerves)
- Precise injection (3-5 min): 32G ultra-fine needle → 4-6 units Coretox per point → intramuscular injection depth → total 10-20 units → gentle pressure after injection
- Immediate assessment and guidance (3 min): Patient purses lips to confirm reduced muscle activity → post-care instructions (avoid lying flat and massaging for 4 hours, avoid strenuous exercise for 24 hours, avoid high-heat environments for 1 week, avoid testing by forceful lip pursing) → 2-week follow-up
The chin Coretox injection takes about 10 minutes, with onset at 2-3 days, visibly smoother texture at 5-7 days, lasting 3-5 months. Located 3 minutes from Gangnam Station Exit 10, with seamless English and Chinese consultation.
Frequently Asked Questions
How long do Coretox chin results last? How often do I need injections?
Coretox chin muscle relaxation typically lasts 3-5 months — the chin is frequently active (speech, chewing, lip pursing), but the dose is small (10-20 units) and the mentalis is a fixed position, providing relatively stable duration. Rappoel recommends: injection every 4-5 months for maintenance. Benefits of regular treatment: (1) Continuous suppression of lip-pursing contraction prevents orange-peel texture from deepening. (2) After prolonged relaxation, baseline muscle tone decreases, allowing some patients to extend to 5-6 month intervals. (3) When combined with HA chin filler, relaxing the muscle first makes filler results better and more natural. Patients with clearly retruded chins should consider Botox + HA filler combination.
Will chin Coretox affect speech or eating? Will my lips be crooked?
With proper dosing and placement there’s no effect on speech or eating, and no lip crookedness — the key is dose and placement control: (1) Dose — standard chin dose is 10-20 units, only relaxing the mentalis, far below the threshold affecting chewing. (2) Placement — Rappoel precisely injects the central mentalis, avoiding the lower lip orbicularis oris and depressor anguli oris — muscles controlling lip closure and mouth corners remain unaffected. (3) Effect — after proper treatment, lip pursing, speech, and eating remain completely normal — the chin skin is simply no longer over-stretched, with smoother texture. (4) Risk — if excess spreads to the lower lip, temporary lower lip movement stiffness may occur, resolving naturally in 4-6 weeks. Rappoel starts standard, preferring under-treatment.
Does Coretox really work for orange-peel chin texture?
Yes — the core cause of orange-peel chin is excessive mentalis contraction pulling the skin: (1) Dynamic texture (only when pursing) → Coretox works best — after muscle relaxation, lip pursing no longer pulls the skin, texture visibly smooths. (2) Static texture (visible at rest) → texture noticeably fades after muscle relaxation — because texture formation relates to sustained muscle contraction; once relaxed, skin naturally unfolds; if skin is clearly lax, combine with HA or laser treatments for skin firmness. (3) Skin-aging type (lax wrinkles) → Coretox has limited effect; recommend combining with ultrasound tightening or laser. Rappoel assesses the texture cause during consultation to recommend the best combination.
How fast does chin Coretox work? When is the effect most visible?
Coretox chin treatment timeline: (1) 2-3 days — onset begins, weaker muscle force when pursing. (2) 5-7 days — chin texture visibly smoother, bumpiness significantly reduced when pursing. (3) 2 weeks — optimal results, dynamic texture essentially gone, chin looks more relaxed. (4) 3-5 months — effect gradually diminishes, muscle activity returns, re-injection possible. Note: avoid lying flat or massaging for 4 hours after injection (prevent medication migration); avoid testing by forceful lip pursing for 1 week (accelerates metabolism). For optimal state before important events, inject 2 weeks in advance.
Besides Coretox, what else does a retruded chin need?
Complete treatment for a retruded chin depends on the cause: (1) Muscle-tension retrusion — overactive mentalis makes the chin look retracted; Coretox relaxes it, naturally improving appearance. (2) Skeletal retrusion — the mandible itself is set back; Coretox alone has limited effect, recommend: HA chin filler (1-2ml) — non-surgical way to add length and projection, instant and reversible, suitable for mild to moderate retrusion; chin implant or genioplasty surgery — for severe retrusion. (3) Combination type — Coretox to relax muscles + HA filler to rebuild proportion, best results. Rappoel assesses bone, muscle, and soft tissue layers during consultation to recommend the best combination.
Tight chin with orange-peel texture? Rappoel Coretox chin muscle relaxation — 5 minutes to smoother chin contours!
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