V-line contouring (브이라인).

The surgical procedure (하악 윤곽술) cuts and reshapes the mandible — the lower jawbone — to narrow the facial profile. It typically includes a T-shaped chin osteotomy (genioplasty) and mandible angle reduction. This is a major procedure under general anesthesia, with a 2–3-day hospital stay at the clinic and visible swelling for 2–4 weeks. Final contour settles at 3–6 months.

Two main injectables are used. Masseter botulinum toxin (턱보톡스) reduces the bulk of the masseter muscle over 4–6 weeks, shifting the jawline appearance. Effects last 4–6 months and dose accumulates across repeat treatments. Contouring fillers in the chin or along the jawline adjust shape directly; duration depends on the product (12–18 months for most HA gels).

For surgical: the specific bone cut technique, nerve preservation protocol (the inferior alveolar nerve runs through the mandible), the clinic's recovery room and overnight staffing, and the surgeon's specific annual volume. For botox: brand and unit count; many Korean clinics use domestic toxins (Nabota, Botulax, Meditoxin) at lower price points than Allergan Botox.

Surgical: 2 weeks of visible swelling, 4–6 weeks of residual tightness, full settling at 6 months. Hospital stay is typically 1–3 nights at the clinic. Botox: none. Filler: minor swelling and bruising for 1–3 days.

Surgical: ₩6,000,000–₩15,000,000 depending on combined procedures (chin osteotomy + mandible + cortical reduction). Masseter botox: ₩200,000–₩500,000 per session (every 4–6 months). Contour fillers: ₩800,000–₩3,000,000 per treatment depending on volume used.

For surgical: "How many genioplasties and mandible reductions has the surgeon performed in the past 12 months, and what's the clinic's infection rate for this procedure class?" For injectable: "How do you handle over-reduction if the botox effect is too strong?" Both questions separate casual practitioners from serious ones.