Elegant
body lines,
without surgery.
Slim, defined calves and a graceful neck-shoulder line. Body botox (calf and trapezius) relaxes overdeveloped muscles for softer silhouettes — popular for Korean K-pop dancers, office workers with tight shoulders, and anyone seeking a more feminine body line.
At a glance.
A treatment favored by K-pop idols and office workers alike.
Body botox relaxes overdeveloped muscles in the calves (gastrocnemius) or shoulders (trapezius) for slimmer, more elegant body lines. Calf botox is sought by patients with bulky lower legs from walking, running, or genetics. Trapezius (shoulder) botox is popular for desk workers with tight, raised shoulders and for anyone wanting the graceful neck-shoulder line seen in Korean K-pop performers. Pricing from ₩29,000 (Korean Standard, 100u) to ₩550,000 (Allergan, 200u).
The science
,
simplified.
Understanding the mechanism helps you set realistic expectations and choose the right brand for your goals.
Identifying the target muscle
Dr. Lee assesses which muscle is causing the bulk — for calves, typically the gastrocnemius (the visible 'diamond' at the back of the calf); for shoulders, the upper trapezius (the muscle that rises behind the neck when tense).
Multi-point injection
Large muscles need higher doses spread across multiple points. Calf: 6–8 injection points per leg. Trapezius: 8–10 points per shoulder. The entire treatment takes 10–15 minutes.
Gradual atrophy and slimming
Over 4–6 weeks, the muscle gradually reduces from lack of use, creating a slimmer silhouette. Trapezius shows faster results (3–4 weeks) because the muscle is smaller; calves take 6 weeks for full effect.
Maintenance
Effect lasts 4–6 months per treatment. Maintenance every 6 months preserves the slimmer silhouette. Unlike jawline, calf/trapezius muscles tend to not shrink permanently, so regular treatment is needed to maintain results.
Where we inject
,
and why.
Each area has its own anatomical target, typical dose, and result timeline. Dr. Lee will recommend a personalized plan during consultation.
| Area | Concern Treated | Typical Dose | Results In |
|---|---|---|---|
| Calves (Gastrocnemius) | Bulky calf muscles, 'diamond leg' shape | 100–200u total | 4–6 weeks |
| Trapezius (Shoulders) | Thick, tense shoulder muscles, short neck appearance | 100–200u total | 3–4 weeks |
| Platysma (Neck) | Visible neck bands, 'turkey neck' | 30–50u | 2–3 weeks |
4 tiers, 1 goal
:
safe results.
Both Korean and imported brands are clinically safe when administered by licensed dermatologists. Differences come down to cost, speed of onset, and duration.
| Brand | Price | Best For | Duration |
|---|---|---|---|
| Korea Korean Standard | ₩29,000 / 100u | Entry-level, patients trying calf/shoulder botox for first time | 3–4 months |
| Korea Coretox | ₩80,000 / 100u | Regular maintenance patients (high-purity reduces antibody resistance) | 4–5 months |
| Imported Dysport | ₩190,000 / 100u | Fast visible results, pre-event slimming | 4–5 months |
| Imported · FDA Allergan | ₩290,000 / 100u · ₩550,000 / 200u | Premium patients wanting proven long-lasting results | 4–6 months |
Good candidates &
who should wait.
Every treatment has ideal candidates and situations where it's not recommended. Safety first — always.
Good candidates
- Visibly bulky calves when flexed (runners, dancers, genetic muscular legs)
- Tense, raised trapezius (desk workers, phone/laptop users)
- Desire for elegant collarbone/neck line
- Teeth grinders with upper back tension
- Age 20–60, good general health
Not ideal for
- Professional athletes or bodybuilders who need muscle power
- Pregnancy or breastfeeding
- Neuromuscular disorders
- Very thin calves (botox can reveal lack of fat padding)
- Chronic shoulder injuries without medical clearance
What happens after.
We believe in informed patients. Here's what to expect after treatment, and the full safety profile.
After your treatment
- Stay upright for 4 hours — don't lie flat
- Skip intense lower-body exercise for 48 hours (walking is fine)
- No deep tissue massage to treated area for 2 weeks
- Avoid hot showers/sauna for 24 hours
- Some transient muscle soreness 1–3 days (normal)
- Full slimming visible at 6 weeks
- Good posture during first week helps trapezius result
Possible side effects
- Mild soreness at injection sites (2–3 days)
- Small bruises (resolve in 5–7 days)
- Temporary 'tired leg' feeling for calves (1 week)
- Trapezius: temporary weakness lifting heavy overhead items (1–2 weeks)
- Over-weakening causing walking fatigue (calves) — rare with proper dosing
- Asymmetric slimming (corrected at touch-up)
- Tension headache from trapezius treatment (resolves in 1 week)
Dr. Lee Portrait
Dr. Jeong Heon Lee,
board-certified
dermatologist.
Every face has its own quiet rhythm.
My work is to add precision without erasing what's natural
—
revealing what already makes you beautiful,
in its most graceful form. A journey we walk together.
- MD, Inje University College of Medicine
- Member, Korean Dermatological Association
- Member, Korean Society of Cosmetic Dermatology
- 15+ years in cosmetic dermatology
Calf & Trapezius Botox
questions.
How much does calf/trapezius botox cost in Busan?
How long does calf or trapezius botox last?
How long before I see results?
Will I still be able to walk, run, or exercise?
Can calf botox cause uneven leg proportions?
Will trapezius botox help my shoulder tension?
Can I combine calf and trapezius botox in one visit?
Will my shoulders look disproportionately small after trapezius botox?
Is calf/trapezius botox painful?
Do you offer English-speaking consultations for body botox?
Book your free
calf & trapezius botox consultation.
15-minute in-person or video consultation in English, Japanese, Chinese, or Korean. No pressure, no obligation. Free skin analysis included.
Individual results may vary. Content is for informational purposes only and is not a substitute for medical advice. Please consult a licensed medical professional before any procedure. Prices include VAT. JRYN Dermatology is licensed under the Korean Medical Service Act.