The upper face is where expression wrinkles concentrate and aging first becomes visible. Daily facial expressions — speaking, smiling, frowning, surprise — cause the frontalis muscle (forehead lines), procerus and corrugator muscles (frown/glabellar lines), and lateral orbicularis oculi (crow’s feet) to continuously contract and fold the overlying skin. Over time, these dynamic lines become static and self-perpetuating. Most clients don’t have wrinkles in just one zone — forehead lines, glabellar lines, and crow’s feet typically coexist and interact. Rappoel Dermatology, based on upper-face distributed muscle anatomy and three-zone kinetic relationships, presents the Coretox Triple-Zone Protocol: precision distribution of Coretox botulinum toxin across the forehead, glabella, and periocular zones — one session to address all three upper-face expression lines.
Why Triple-Zone Combined > Single-Zone Treatment
- Kinetic chain interplay: The frontalis (eyebrow elevator) and glabellar complex (depressors) are antagonistic. Treating only the forehead without addressing the glabella may cause compensatory glabellar hypertonicity and worsen frown lines
- Natural expression requires global balance: Treating one zone while leaving others fully active creates asymmetry and unnatural facial dynamics
- Single recovery window: All three zones in one appointment, one healing cycle
- Harmonized outcome: The physician can titrate dosage and point distribution across all three zones simultaneously, ensuring proportional balance
Coretox Triple-Zone Technical Key Points
1. Frontalis — Smooth forehead lines while preserving natural brow lift
The frontalis is the sole elevator of the upper face. The goal is not complete paralysis (which causes brow ptosis) but selective relaxation of the upper frontalis fibers, preserving activity above the brows. Using the micro-droplet technique, each Coretox injection is 1-2U, with 4-8 injection points distributed evenly above the transverse forehead creases, maintaining a 1.5-2cm activity zone above the eyebrows. Post-treatment: forehead lines significantly reduced, subtle brow lift expression preserved.
2. Glabella — Erase frown lines, release glabellar tension
The glabella is the upper face’s core kinetic center, involving the procerus and bilateral corrugator supercilii muscles. Coretox is precisely injected into the muscle bellies: 2-3 points per corrugator (3-4U each), 1-2 points for procerus (3-5U each), total approximately 15-25U. At 7-10 days post-injection, frowning force is significantly reduced; glabellar lines improve markedly in both static and dynamic states.
3. Crow’s Feet (Lateral Canthus) — Periocular laughter lines
Crow’s feet result from lateral orbicularis oculi contraction during smiling (radial creases at the outer eye corner). Coretox is injected subcutaneously (~1cm from the lateral orbital rim) at 3 points per side (2-3U each, 12-18U bilateral). Post-treatment: crow’s feet dramatically reduced while medial orbicularis function preserved (normal eye closure unaffected); smile expression remains natural and charming.
Rappoel Triple-Zone Treatment Workflow
- Dynamic expression assessment (10 min): The physician observes eyebrow raise, frown, and full smile to dynamically evaluate contraction intensity, range, and dominance pattern across all three zones, categorizing each individual’s muscle distribution type (frontal-dominant, glabellar-dominant, or mixed)
- Dosage and point planning (5 min): Individualized injection map with per-point Coretox dosage based on muscle strength variation
- Antisepsis and injection (10 min): After disinfection, ultra-fine needles (31G/32G) deliver precise injections at each planned point — approximately 15-25 points total across three zones, minimal discomfort
- Post-injection observation (5 min): Immediate adverse reaction check; aftercare instructions (no bending forward or lying flat for 4 hours; no vigorous exercise or facial massage for 24 hours; avoid sauna and high heat for 1 week)
Coretox is Korea’s next-generation botulinum toxin, using high-purity 150kDa neurotoxin free of complexing proteins, with low immunogenicity (reduced antibody formation risk vs. traditional brands). Onset: 2-3 days; peak: 7-10 days; duration: 4-6 months. Rappoel is a 3-minute walk from Gangnam Station Exit 10, with Chinese and English consultation.
Frequently Asked Questions
Forehead lines + frown lines + crow’s feet triple trouble? One Coretox upper-face treatment restores natural youthful expression
📍 77, Seocho-daero, Seocho-gu, Seoul, South Korea
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