Shoulder Botox in Seoul: Slimmer Traps and a Longer Neckline
The short answer
Shoulder Botox injects botulinum toxin into the upper trapezius muscle to relax and gradually slim it, creating a longer, more elegant neck and shoulder line. In Gangnam it typically costs about ₩100,000–₩500,000 depending on the toxin brand and dose, takes 10–15 minutes, and has no downtime. Slimming appears over 2–6 weeks and usually lasts 4–6 months.
Key facts
- Target muscle: upper trapezius
- Typical dose: about 50–100 units per side, adjusted to muscle size
- Procedure time: 10–15 minutes
- Downtime: none; mild soreness at injection points
- Results visible: 2–6 weeks
- Results last: about 4–6 months
- Typical Seoul price: about ₩100,000–₩500,000; Korean toxins cost less than imported brands
What shoulder Botox does
The trapezius is the large muscle that runs from the base of the skull across the top of the shoulders. When the upper part is well developed, often from desk posture, carrying heavy bags or strength training, it can make the neck look shorter and the shoulders broader and more rounded. Botulinum toxin temporarily blocks the nerve signals that make the muscle contract. With less activity, the muscle shrinks slightly over several weeks, giving a smoother, sloping line from neck to shoulder.
In Korea the treatment is popular for its aesthetic effect, and many patients also report that tension in the shoulders feels lighter.
Who is a good candidate?
- People with prominent, bulky upper traps
- Those wanting a longer-looking neck in off-shoulder outfits or wedding dresses
- Desk workers with tight, overactive trapezius muscles
- Patients who prefer a non-surgical, reversible change
It is not ideal if your shoulder width comes mainly from bone structure or fat, or if you need full trapezius strength for heavy lifting or competitive sport. Discuss neuromuscular disorders, pregnancy or breastfeeding with the doctor first.
Choosing a toxin brand
| Toxin type | Examples | Price level | Notes |
|---|---|---|---|
| Korean toxins | Botulax, Nabota, Innotox, Coretox | Lower | Widely used for large muscles because doses are high |
| Imported toxins | Botox (Allergan), Dysport, Xeomin | Higher | Often chosen by repeat patients for consistency |
Because the trapezius needs a large dose, brand choice has a big effect on cost. Our botulinum toxin injection guide compares brands in more detail.
The procedure
The doctor asks you to shrug and feels the muscle to map its bulk, then marks several injection points on each side. After cleansing, the toxin is injected with a fine needle. Many people describe it as quick pinches with a little pressure; numbing cream is optional. The whole visit usually takes less than 20 minutes, and you can return to work, shopping or sightseeing straight away.
When results appear
You will not see a change immediately. The muscle begins to relax after about a week, and visible slimming usually develops over two to six weeks as the muscle reduces in size. Results typically last four to six months. With repeat sessions, many patients find the muscle stays slimmer for longer and doses can sometimes be reduced.
Aftercare and side effects
- Avoid massage, saunas and heavy upper-body workouts for 24–48 hours
- Stay upright for a few hours after treatment
- Small bruises or tenderness at injection points are common and brief
- Some people notice temporary weakness when lifting arms overhead or carrying heavy bags
Rarely, toxin can spread to nearby muscles, causing neck fatigue. Experienced injectors place the dose carefully to avoid this.
Posture and lifestyle
Results last longer when the habits that built the muscle are eased. Raise your screen to eye level, take short breaks to roll your shoulders, carry bags across both sides and stretch the neck gently each day. If you train at the gym, ask the doctor how to adapt upper-body sessions during the first weeks.
Combining with other treatments
Shoulder Botox is often booked alongside jaw slimming toxin or micro Botox for skin. Because total doses add up, the doctor should plan the combined amount. If you also want to treat underarm sweating, ask about the timing of a hyperhidrosis injection in the same visit.
Planning as a visitor
With no downtime, shoulder Botox suits even a one-day stop in Seoul. As results appear after you leave, take a photo before treatment for comparison. Ask the clinic to note the brand and total units so you can repeat the plan at home or on your next trip.
This guide is for general information and is not medical advice. Prices are typical ranges reported by Gangnam clinics in 2026 and vary by clinic, doctor and treatment plan; confirm directly with the clinic.
Patient questions
Frequently asked questions
How long does shoulder Botox last?
Results usually last about 4–6 months, sometimes longer after repeated treatments.
Will my shoulders feel weak?
Some people notice mild weakness lifting heavy objects overhead for a few weeks; everyday activities are usually unaffected.
Can shoulder Botox relieve neck tension?
Many patients report less tightness, though the treatment is mainly performed for aesthetic slimming.
How many units are used?
Commonly about 50–100 units per side, adjusted to muscle size and toxin brand.
Can I exercise after treatment?
Wait 24–48 hours before heavy upper-body workouts.
Not sure which Gangnam clinic is right for you?
Tell us your goals, budget and travel dates. Our English-speaking coordinators compare doctor-led clinics and usually reply with free quotes within 24 hours.