Korea Thermage FLX procedure steps video: what each step means, what the camera skips, and who should not book

What is each step in the video actually doing?

Watched a Korea Thermage FLX procedure steps video and now wondering whether that tidy sequence on screen is what would happen to your face, and whether you should be booking it at all?

The steps in those videos are real: cleanse, numb, print a grid, then press the FLX tip to the skin one heated, cooled pulse at a time. What no video shows is the part that decides both your result and your risk, which is whether your skin has enough laxity to tighten and whether anything in your history makes deep heat a poor idea.

Hello, I'm Dr. Won Woo Choi, Medical Director at WELLS Clinic in Apgujeong, Seoul. I'm a board-certified dermatologist who did my residency and board certification at Seoul National University Hospital, where I'm an adjunct professor in the Department of Dermatology.

Three facts matter if you learned the procedure from a screen. WELLS has had one clinic, in Apgujeong, since 2008, and a dermatologist does both the consultation and the treatment. We don't use sleep sedation: with Air NOX and local anesthetic you stay awake, so you can see the tip and the shot count yourself, and the tips are genuine Thermage FLX tips; if one were ever found not to be, WELLS refunds ten times the treatment price.

If a video left you with one nagging question, send it on WhatsApp with two daylight photos of your lower face, one from the front and one from the side. Photos show the skin and soft tissue along your jaw far better than a description can, and that is what a candidacy question turns on.

Thermage FLX is monopolar radiofrequency. Current runs from the treatment tip through your skin to a return pad placed elsewhere on your body, and the tissue's resistance turns it into heat in the dermis and the fibrous layer beneath it. That heat makes existing collagen contract and, over the following months, prompts new collagen to form; a review in Lasers in Surgery and Medicine lays out this mechanism. The cooling spray you hear on video protects the surface while the deeper layer warms.

Most videos stop there. At WELLS, Thermage MAX adds three things a generic clip won't show: a skin microbiome test first, an AQ MAX infusion of two bottles of alanyl-glutamine beforehand, and a collagen-peptide serum applied during the passes to ease the sting. The AQ MAX evidence comes from WELLS cell-culture tests, which are laboratory results that haven't been shown in people. So I'd count it as an extra, and choose Thermage for the FLX treatment itself.

What a Korea Thermage FLX procedure steps video leaves out

First, the screening. A clip shows a face chosen for the camera, usually one that responds well to heat: some laxity, enough soft tissue, no reason to hold back. It never shows the conversation in which someone is told this isn't the treatment for them.

Risks and side effects to know

Second, the timing. Changes typically begin to show about two weeks after treatment, and collagen keeps remodeling for months after that. Whatever looks firmer at the end of a video is mostly the first hours of contraction and mild swelling.

Third, the sensation. The click and the spray sound mild on a phone speaker. In the chair it is a hot, stinging feeling, strongest over the jawbone and wherever skin is thin, which is why we combine numbing cream, local anesthesia and the serum, with Air NOX available if you want it.

I've answered patients' questions on YouTube for years, in Korean, and our site writes each video out in English. One of them is about why Thermage feels like it did nothing for some people. The answer is usually a decision made before the first shot, not during it: who was treated, which areas, and how many shots. Whichever clinic's footage you watch, notice whether anyone ever talks about who it isn't for.

Who should skip Thermage, or wait?

The list below is general medical caution about monopolar RF, and your own history decides which items apply.

• An implanted electronic device, such as a pacemaker or defibrillator. RF current and implanted electronics are a standard reason not to treat.
• Pregnancy. There's no good reason to add deep heat while pregnant, so wait.
• An active skin infection, cold sore or open wound in the area to be treated.
• A very lean face with little fat under the skin. Tightening it can make hollows look deeper.
• Heavy sagging with folds of loose skin. Heat contracts and remodels collagen; it can't remove skin, and that is a surgical conversation.
• Recent filler or threads in the same area, or isotretinoin in recent months. Not always a no, but the doctor needs to know before planning.
• An event in the next few days. If you need a visible change this week, the timing is wrong.

Redness, swelling, dents and burns: how often they happen

The most useful published safety record is older but large. A 2006 retrospective analysis in the Journal of Drugs in Dermatology reviewed over 600 consecutive monopolar RF treatments of the lower face: redness and swelling were the usual reactions and mostly settled within 24 hours, though a few people stayed swollen for up to a week. A small minority of treatments had a temporary problem, such as a slight depression in the cheek, small bumps or a superficial crust, and each resolved within about a week, with no lasting side effects reported.

The device has changed since then, and the FDA cleared the current Thermage FLX system through its 510(k) process. Burns and blisters remain possible with any RF device and tend to relate to energy level, contact and cooling, which is one reason the person holding the tip matters. How a face responds also differs from one person to the next, and the in-person exam is where suitability is settled.

Once you're home, tenderness under the jaw for a few days is common. A blister, a crust that spreads, a dent still there after a week, or numbness that isn't fading are reasons to photograph the area in the same light each day and see a dermatologist near you. Ask for a copy of your treatment record before leaving Seoul, with the areas treated and the shot count, so that doctor isn't guessing.

If anything on the skip list applies to you, a pacemaker, filler from last spring, a medicine you take, put it in your WhatsApp message next to your travel dates. That detail changes whether heat suits you, and it's easier to settle before a flight is booked.

What if the problem isn't loose skin?

Many people who watch Thermage videos are bothered by something heat won't change. If it's brown patches or uneven tone that ages you in photos, that's a pigment question and lasers are the tool; laser toning cost in Korea explains what moves that figure. If it's fullness under the chin, fat is the target, and the guide to what sets the cost of InMode in Korea covers Forma and Mini FX.

Thermage suits mild to moderate laxity: a jawline that has softened, cheeks that look less firm, early crepiness. Being clear on that before you fly saves a session spent on the wrong layer.

Fitting the steps into a few days in Seoul

The treatment needs no fasting, and because there's no sleep sedation you can walk out, or drive, afterwards. Redness is mostly gone by the next day, so a session early in the trip leaves the rest of it largely normal. What you won't see in Seoul is the change itself, which starts around the two-week mark.

WELLS is a five-minute walk from Exit 3 of Apgujeong Station on Line 3, open Monday to Friday 10:00–20:00 and Saturday 10:00–17:00, with lunch from 13:00 to 14:00 and closed Sundays and Korean public holidays. For timing a session against your flights, see the Thermage Korea guide to planning around your flights; for what the listed prices include and what changes them, see Thermage cost in Seoul.

Send two daylight photos of your jaw and cheeks with your dates in Seoul on WhatsApp, and ask whether a session early in that trip makes sense for your face. If you'd rather talk it through in a language other than English, a medical interpreter for your language is provided at no extra charge. In the consultation, I'll start by checking how much skin and soft tissue there is along your jawline to tighten. WELLS Clinic, 8F Apgujeong B/D, 842 Nonhyeon-ro, Gangnam-gu, Seoul.

Results and recovery vary by individual. Every treatment carries possible side effects, which are explained at the consultation. Prices are in Korean won, including 10% VAT, and confirmed at your consultation. This article is general information from the clinic, not a diagnosis.

Written by

Dr. Won Woo Choi

Medical Director · M.D., Ph.D. · WELLS Clinic, Apgujeong

• Board-certified dermatologist in Korea; trained at Seoul National University Hospital
• Dermatology residency, Seoul National University Hospital; board certification in dermatology in Korea
• Ph.D. in Dermatology, Seoul National University
• Former clinical instructor, Seoul National University Hospital
• Adjunct professor, Department of Dermatology, Seoul National University Hospital

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