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!
Non-Surgical · Injectables · Body
Upper trapezius plans, dosing and timing
Gangnam, Seoul | Board-certified plastic surgeon, Dr. Jonghwan Choi
KHIDI-registered for international patients · Apgujeong Rewind
The shoulder line
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.
What is treated, and what is not
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.
Plan and timing
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.
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.
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.
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.
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.

Why here
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.
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.
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.
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.
On the day

Fig. 04 · The lounge, Richro Building

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.
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.
Published rates
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.
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.
This month at Rewind — offers published by the clinic, updated monthly.
Suitability
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.
Week by week
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.
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.
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.
Rewind,
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.
Questions
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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!
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Reservation
Tell us what your shoulders do under load, and what you need them to keep doing, and the reply will address both.
For international patients — interpreter-assisted, from your first message to your follow-up.
Scientific evidence
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.