Non-Surgical · Injectables · Body

Shoulder Line

Upper trapezius plans, dosing and timing

Gangnam, Seoul | Board-certified plastic surgeon, Dr. Jonghwan Choi
KHIDI-registered for international patients · Apgujeong Rewind

Shoulder Line Shoulder Line Shoulder Line Shoulder Line Shoulder Line 
Slope

The shoulder line

What does a trapezius injection cost in Gangnam, and what does it change?

The short answer

The muscle that runs from the base of the skull out to the point of the shoulder gives the neck its slope. Botulinum toxin placed in its upper part reduces how hard it works, and the bulk it carries falls away over the following weeks, so the line from neck to shoulder reads longer and flatter. Rewind lists body work in plans of one hundred and two hundred units; value-added tax is charged on top of the published figure.

Source: the clinic's Korean rate list, where body plans appear as their own items, and its treatment page, which records an effect of three to six months.

What the injection cannot alter is the frame underneath. A shoulder line set by the angle of the collarbone, by fat, or by the way you hold yourself at a desk will look much the same after treatment. That distinction is drawn at the examination, before a plan is written. Other regions are set out on the botulinum toxin page.

Consultation with Dr. Jonghwan Choi at Rewind Plastic Surgery, Apgujeong
Fig. 01 · The shoulder is examined with the arms loaded and relaxed
Map

What is treated, and what is not

Which part of the shoulder does the injection reach?

Only one of the four things that shape a shoulder line responds to this treatment. The consultation exists largely to work out which of them you have.

part 01
Upper trapezius, both sides
The ridge that rises when you shrug. This is the target, and the listed plan covers the pair; how the dose is divided between left and right follows what the examination finds.
part 02
The neck-to-shoulder junction
Where the slope is read visually, and where a bulky muscle is most obvious in a wide neckline or a strapless dress.
part 03
Calf, listed separately
The other body region on the clinic's list. Some patients plan both in one visit; each carries its own figure and its own decision.
part 04
Bone, fat and posture
Not muscle, and therefore outside what this injection does. A downward-angled collarbone, soft tissue over the shoulder, or a habitual raised-shoulder posture each require their own answer.
Weeks

Plan and timing

How is a shoulder plan dosed, and when does the line change?

This is a large muscle doing real work, so the plan is written with two questions in view: how much bulk can be lost, and how much strength must be kept.

01Source

Shrug first, then decide

You are asked to lift the shoulders and then let them go completely. A ridge that hardens on the shrug and softens afterwards is muscular. A contour that looks identical either way belongs to the skeleton or to soft tissue, and no unit count will move it.

02Plan

Two published plans, divided across the pair

The clinic lists body work at one hundred and two hundred units. Rewind's own statement is that dosing follows individual structure, so the plan is selected from the size of the muscle in front of the surgeon and then distributed between the two sides and across several points on each.

03Curve

Strength changes early, shape changes late

Shrugging feels lighter inside the first fortnight. The visible flattening of the slope arrives later, as a muscle that is no longer contracting at full force loses bulk. Studies that measured this pattern in the jaw with ultrasound recorded thinning across the months after injection, and the shoulder follows a similarly unhurried schedule.

04Limits

The evidence base for body contouring is thinner than for the face

Toxin in the body has a substantial trial record in excessive underarm sweating, and muscle-bulk reduction has been documented most thoroughly in the jaw. Slimming the shoulder line rests on the same mechanism with a smaller published literature behind it, and this page says so plainly.

Reception desk at Rewind Plastic Surgery, Apgujeong
Fig. 02 · Body plans are booked and reviewed like any other appointment
Rewind

Why here

Why is a working muscle dosed conservatively at Rewind?

The trapezius holds the shoulder girdle and stabilises the neck. Every unit that buys a smoother line also takes something away from that job, and the balance between the two is a medical decision.

01Function

What you do with your shoulders sets the ceiling

Someone who lifts weights, carries a child or plays a racquet sport needs a different plan from someone whose complaint is how a neckline sits. That conversation happens before any figure is agreed, because a shoulder that gives way under load is not a cosmetic outcome.

02Diagnosis

A surgeon separates bulk from build

Dr. Choi assesses the collarbone angle, the fat layer over the shoulder and the resting position of the girdle alongside the muscle itself. Where the line is skeletal, he says so at the consultation and no plan is written.

03Follow-up

The second plan is written from the first result

Units, the points used and your account of when the shrug came back are kept on record. Patients travelling from abroad are supported in their own language when that review happens by message from abroad.

Private lounge at Rewind Plastic Surgery, Richro Building, Apgujeong
Fig. 03 · Appointment-only, on the clinic floors in Apgujeong, Seoul
Visit

On the day

What does a shoulder appointment look like?

Patient lounge at Rewind Plastic Surgery, Apgujeong

Fig. 04 · The lounge, Richro Building

Private room on the treatment floor at Rewind Plastic Surgery

Fig. 05 · A private room to sit in afterwards if you prefer

The clinic works by appointment on Monday, Tuesday, Wednesday and Friday from 10:00 to 19:00, and on Saturday from 10:00 to 16:00; Sunday and Thursday are closed. The medical director examines the shoulders loaded and relaxed, agrees the plan, marks the points across both sides and gives the injection. Ordinary activity carries on from there.

Body plans of 100 and 200 units
Dose divided across both shoulders
Calf listed as a separate body item
Published effect: three to six months
Examined and injected by Dr. Jonghwan Choi
No incision, nothing implanted

No anaesthesia protocol or session length is published for this injection, so neither appears on this page. Tell the doctor about shoulder or neck injuries, any weakness you have had in the arms, and any toxin given to the same muscles elsewhere within recent months.

Rates

Published rates

Rewind's listed figures for shoulder and calf plans

Body regions are listed by unit plan. The figure you are quoted is the plan the examination selected; treating a second region adds its own separate line.

Shoulder line, 100-unit planThe usual starting plan, divided across both sides
₩200,000
Shoulder line, 200-unit planFor a heavier muscle, decided by examination
₩400,000
Calf, 100-unit planListed separately when the calves are treated as well
₩200,000

These are published list figures; value-added tax is added at payment, and any anaesthetic fee is already included in the rate shown. Because the effect is temporary, treat the figure as a per-session cost and ask at consultation how often your own muscle is likely to need it.

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This month at Rewind — offers published by the clinic, updated monthly.

Fit

Suitability

Whose shoulder line responds, and whose does not?

Often a reasonable plan

  • A ridge that hardens visibly on shrugging and settles when the shoulders drop
  • Desk work with constant tension through the neck and upper back
  • A neckline or strap that you avoid because the slope looks short
  • Someone who accepts a slow visible change and a temporary effect

Discussed carefully first

  • A slope determined by the angle of the collarbone, unchanged between shrug and rest
  • Soft fullness over the shoulder, where the finding is tissue rather than muscle and body contouring injections may be the relevant conversation
  • Training that depends on overhead strength, or work that involves lifting
  • A history of neck or shoulder injury, a neuromuscular condition, pregnancy, breastfeeding, or recent toxin in the same muscles

Patients are turned away from this treatment more often than from facial areas. The commonest reason is a shoulder whose shape has nothing to do with muscle, and the second is a training programme that the loss of strength would interrupt. Both are explained at the consultation, with what the alternative would involve.

After

Week by week

How long until the shoulder line looks different?

Expect a longer wait than facial areas produce. A large muscle loses bulk slowly, and the first thing you notice is how the shoulders feel, well before anything looks different.

Day 0–2
Leave the area alone
Avoid strong massage and pressure over the injected muscle, and skip heavy drinking and hot, humid places for one to two days.
Week 1–2
Shrugging feels lighter
Tension through the neck often eases first. The outline is unchanged at this stage, which is expected.
Week 4–8
The slope lengthens
Bulk reduces and the line from neck to shoulder starts reading differently in photographs taken from the same angle and distance.
Month 3–6
Strength returns
The clinic's published range for its toxin work. Power comes back gradually, and the next plan is decided from how long yours actually held.

Documented effects in this region include bruising and soreness at the injection points, headache, neck stiffness, a heavy or weak feeling when lifting the arms overhead, and asymmetry between the two sides. Reviews of aesthetic toxin use describe such events as usually temporary. Anyone whose work or training depends on shoulder power should weigh that possibility before booking, and should report weakness early.

Doctor

Professional

At Rewind, one board-certified plastic surgeon carries every case — from the first consultation to the final follow-up. Because a face is a story, and a story deserves a single author.

Dr. Jonghwan Choi, board-certified plastic surgeonRewind,
Dr. Jonghwan Choi presenting at an academic session
Fig. 06 · Academic presentation

Rewind's Doctor

Dr. Jonghwan Choi Medical Director

One surgeon, from the first
consultation to the last follow-up.

A board-certified plastic surgeon devoted to anti-aging lifting, with the precision and restraint built through years of craniofacial practice.

Board-certified plastic surgeon (Plastic Surgery)
10 peer-reviewed publications
Medical Director, Rewind Plastic Surgery
Korean Society of Plastic & Reconstructive Surgeons
Former chief director, Apgujeong Y&T Plastic Surgery
Korean Society for Aesthetic Plastic Surgery
J Craniofac Surg · JKMS · Arch Craniofac Surg
Korean Cleft Palate-Craniofacial Association
Ask

Questions

Shoulder line injections — the questions that come up first

How much does a shoulder line injection cost in Gangnam, Seoul?
Body work is listed by plan: ₩200,000 for the hundred-unit plan and ₩400,000 for the two-hundred-unit plan. Value-added tax is charged on top, and any anaesthetic fee is already inside the figure.
How many units go into each side?
The listed plan covers the pair, and the split between left and right is decided at the examination. A muscle that is visibly bulkier on one side receives a different share, so the two shoulders are rarely dosed identically.
When will the shoulder line actually look slimmer?
Lightness on shrugging usually arrives inside two weeks; the visible flattening of the slope follows between weeks four and eight as bulk reduces. Photographs from the same angle and distance are the only reliable comparison.
How long does the result last?
Three to six months is the figure the clinic publishes for its toxin work. Power comes back by degrees, with no fixed end date, and the shoulder line thickens again along with it.
Will my shoulders be weaker at the gym?
They can be. A temporary loss of power when lifting overhead is documented, so anyone whose training or work depends on that strength should raise it before booking. The plan can be reduced, or the treatment declined altogether.
How do I know whether my shoulder line is muscle or bone?
The shrug test answers it in seconds at the examination. A ridge that hardens when you lift the shoulders and softens when you drop them is muscular; a contour identical in both states is the skeleton, and this injection does nothing for it.
Can the calves be treated on the same visit?
They can, and the calf plan is quoted separately at ₩200,000. Whether two large muscle groups should be treated on one day is a clinical decision, and the doctor may prefer to stage them.
What should I avoid immediately afterwards?
Strong massage and pressure over the injected muscle for one to two days, and hot, humid places and heavy drinking in the same window. A deep-tissue massage booked for the evening of the appointment is worth moving.
Voices

Google Reviews

What our patients say.

G 5.0 ★★★★★ 51 Google reviews · Rewind Plastic Surgery, Apgujeong — live-synced from Google Business Profile
★★★★★

Came to REWIND to get my facial treatment and i'm absolutely obsessed about it💞 the doctor is so kind and is an expert! Everyone must visit!

YunHee Hong2 weeks ago
★★★★★

There are just way too many cosmetic clinics in Korea and I'm so happy I found Rewind Clinic in Gangnam. Dr. Choi was so kind and patient while explaining the different face-lifting options, from threads to mini-lifts to deep-plane lifts…

J. S.5 months ago
★★★★★

I found Rewind clinic through a Korean chat forum and many local clients highly recommended it. The clinic is brand new, featuring large, clean rooms and many private waiting areas so it doesn't give off that "factory" clinic vibe. All the…

J. Siou5 months ago
★★★★★

Really nice environment. Doctor is easy to communicate and understands my visions. Waited two weeks to make a review and I confirm the results exceeded my expectations and I am super happy with it. Can't wait to come back!! :))

Kristie Chu5 months ago
★★★★★

I received a thread lift at Rewind Plastic Surgery. The clinic was clean and the atmosphere was comfortable. The consultation was thorough, and I felt confident because they kindly explained everything tailored to my facial condition. They…

한주연2 weeks ago · Translated by Google
Booking

Reservation

REWIND,booking

Tell us what your shoulders do under load, and what you need them to keep doing, and the reply will address both.

Visit

REWIND,visit

For international patients — interpreter-assisted, from your first message to your follow-up.

Location
Apgujeong, Gangnam
4F & 5F, Richro Building,
812 Nonhyeon-ro,
Gangnam-gu, Seoul
Hours
Mon·Tue·Wed·Fri 10:00–19:00
Sat 10:00–16:00
Closed Sundays & Thursdays
Lunch 12:00–13:00
Consultation
In your language
WhatsApp · Instagram
Interpreter-assisted
consultations available
Registration
KHIDI Registered
Registered institution for
international patients
Reg. M-2025-01-08-09288

Scientific evidence

Published work behind muscle-bulk injection in the body

These references describe reduction of muscle bulk by type A toxin, the ultrasound measurement of that change, a randomised trial of the same toxin in a body region, and pooled safety findings from aesthetic use. None of them studied the shoulder at Rewind, and the published literature on contouring this particular muscle remains smaller than for the face.