Want the quick numbers before the detail? Here's a four-week supply in 2026 — dose and clinic shift these a lot, so keep reading:
- Wegovy (semaglutide): typically ₩220,000–280,000 per pen at a mid-sized clinic. Some clinics and higher doses push well past that — reported retail stretches to ₩400,000–800,000. Converted, clinic prices usually sit around $160–290 for four weeks.
- Mounjaro (tirzepatide): arrived in Korea in August 2025 at roughly ₩278,000 for a four-week 2.5mg starter — about 25% under Wegovy at comparable points.
Treat these as ballparks, not quotes. What you actually pay rides on the drug, your dose (it climbs as you escalate), the clinic and the district it sits in, and the date you walk in. Get the current price — and what it covers — straight from the clinic.