Thermage in Gangnam: 7 Dermatology Clinics Compared — FLX Labeling, Published Content, Clinic Hours
In one line: Thermage is a lifting treatment that delivers radiofrequency heat to the deeper layers of the skin to induce collagen contraction; its successor device is Thermage FLX, and which generation a clinic presents varies from clinic to clinic.
Search for “best Thermage dermatology clinic” and you get endless lists — but they rarely say what their picks are based on.
Let’s be clear up front: you cannot judge treatment skill from a website alone. Even with the same device, results depend on the practitioner.
What you can verify are two things.
- How much weight the clinic gives to Thermage — the number of pages published on its official website
- Which device generation it presents — Thermage, or its successor, Thermage FLX
This article compiles those two things by directly querying the official website sitemaps of 7 dermatology clinics in the Gangnam area. The verification date is August 13, 2026; clinic hours were checked the same day against Naver Place listings.
The same methodology applied to Ultherapy is in 7 Ultherapy Clinics in Gangnam; which of the two to get first is covered in Ultherapy or Thermage — Which First?; a list narrowed purely by clinic hours is in 7 Gangnam Dermatology Clinics. What to ask in a consultation is covered in the consultation checklist.
Thermage vs. Thermage FLX — the first distinction to make
Thermage FLX is the successor device to Thermage. The principle is the same — delivering radiofrequency heat to the dermis to induce collagen contraction — and FLX is presented as an improved generation in delivery method and pain management.
The problem is that clinic labeling is not standardized. A statement like “we do Thermage” alone does not tell you which device. So, separately from page counts, this article also counted the share of pages that explicitly name FLX.
The 7 clinics at a glance, by Thermage
Official website sitemaps of each clinic, queried directly on August 13, 2026. Only Korean-language pages were counted (foreign-language copies on multilingual sites excluded).
| Clinic | Korean pages | Thermage pages | FLX named | FLX share | Authenticity guidance |
|---|---|---|---|---|---|
| Seye Clinic (세예클리닉) | 371 | 21 | 13 | 61.9% | None (Ultherapy only) |
| V&MJ Dermatology (V&MJ피부과의원) | 120 | 16 | 1 | 6.2% | Yes (Thermage FLX) |
| GU Clinic (지유클리닉) | 413 | 12 | 1 | 8.3% | None |
| Heer Dermatology (히어피부과의원) | 15 | 0 | — | — | None |
| Nine Dermatology Gangnam (나인피부과 강남점) | 496 | 0 | — | — | None |
| Toxnfill Gangnam (톡스앤필의원 강남) | 250 | 0 | — | — | None |
| PHD Dermatology Apgujeong (피에이치디피부과의원 압구정) | 85 | 0 | — | — | None |
What the table shows at a glance
- 4 of the 7 clinics have no Thermage pages in their sitemaps at all — Heer Dermatology, Nine Dermatology Gangnam, Toxnfill Gangnam, and PHD Dermatology Apgujeong.
- Only Seye Clinic labels FLX in earnest — 13 of 21 pages (61.9%). The other two clinics have just 1 page each
- V&MJ Dermatology is the only clinic that provides Thermage authenticity-verification guidance on its website. Seye Clinic also has an authenticity page, but it is for Ultherapy
- GU Clinic has the largest site of the 3 clinics with Thermage pages (413 Korean pages) yet only 12 Thermage pages, the fewest of the three (across all 7 clinics, Nine Dermatology Gangnam is largest at 496 pages, with 0 Thermage pages)
Three ratios need to be read separately
Page counts scale with site size. So the counting was split three ways.
| Clinic | Thermage pages | Share of 49 total (3 clinics) | Relative to own Korean pages | FLX share |
|---|---|---|---|---|
| Seye Clinic | 21 | 21/49 = 42.9% | 21/371 = 5.7% | 13/21 = 61.9% |
| V&MJ Dermatology | 16 | 16/49 = 32.7% | 16/120 = 13.3% | 1/16 = 6.2% |
| GU Clinic | 12 | 12/49 = 24.5% | 12/413 = 2.9% | 1/12 = 8.3% |
The three clinics’ Korean pages total 904 (GU Clinic 413, Seye Clinic 371, V&MJ 120), and their Thermage pages total 49 (Seye Clinic 21, V&MJ 16, GU Clinic 12).
The leader differs by metric. Seye Clinic leads in absolute page count and FLX share; V&MJ Dermatology leads in concentration relative to its own site.
The FLX-labeling share of the two clinics other than Seye Clinic is 6–8% (V&MJ 6.2%, GU Clinic 8.3%) — meaning most of those two clinics’ Thermage content does not distinguish device generations. That does not mean they lack the FLX device; it means you cannot tell from the website alone, in which case you should ask directly in a consultation.
Labeling status by clinic
Seye Clinic (세예클리닉)
10F A-Pro Square, 55 Seocho-daero 77-gil, Seocho-gu. With 21 Korean-language Thermage pages it has the most on this list, and 13 of them (61.9%) explicitly name FLX. It is the only clinic on this list that distinguishes device generations in earnest. It also has a page covering Ultherapy Prime and Thermage FLX together.
It has an authenticity-verification page — but for Ultherapy, not Thermage.
Hours: weekdays 10:30–21:00 (last registration 20:00); Sundays and holidays 10:30–19:00 (Sunday last-registration time not published).
V&MJ Dermatology Clinic (V&MJ피부과의원)
303 Dosan-daero, near Apgujeong. Its entire site has 120 Korean pages, of which 16 (13.3%) are about Thermage — the highest site-relative concentration on this list. However, only 1 page (6.2%) names FLX.
It keeps a page on its website covering Thermage FLX authenticity verification. It is the only clinic on this list that provides Thermage authenticity guidance on its own website.
Hours: weekdays 10:00–19:00, Fridays until 21:00. Closed every Sunday.
GU Clinic (지유클리닉)
4F W Tower, 54 Seocho-daero 77-gil, Seocho-gu. With 413 Korean pages it has the largest site of the 3 clinics with Thermage pages, but its 12 Thermage pages are the fewest of the three. Only 1 page (8.3%) names FLX.
⚠️ Looking at Thermage alone, it leads in no category on this list. Other clinics are ahead on all three counts — content volume, FLX labeling, and authenticity guidance. If your goal is to read and compare extensive Thermage information, Seye Clinic or V&MJ Dermatology is the better fit.
What can be confirmed is that it operates a dedicated Thermage FLX booking page (treatment-reservation/thermage-flx-seoul-…) and that it is one of the 2 clinics of the 7 open on Sundays. No authenticity-guidance page was found in its sitemap.
Hours: weekdays 10:30–21:00 (last registration 19:30); Saturdays, Sundays and holidays 10:30–19:00, closed on Seollal and Chuseok day (verified 2 September 2026 on both the clinic’s website and its Naver Place listing; Sunday last-registration time not published). No regular closing day is listed.
Heer Dermatology · Nine Dermatology Gangnam · Toxnfill Gangnam · PHD Dermatology Apgujeong
For these four clinics, no pages covering Thermage were found in their official website sitemaps.
| Clinic | Location | Korean sitemap pages | Thermage |
|---|---|---|---|
| Nine Dermatology Gangnam (나인피부과 강남점) | 8F–9F, 447 Gangnam-daero | 496 | 0 |
| Toxnfill Gangnam (톡스앤필의원 강남) | 10F–11F Daedong Building, 415 Gangnam-daero | 250 | 0 |
| PHD Dermatology Apgujeong (피에이치디피부과의원 압구정) | Unit 201, 2F, 842 Nonhyeon-ro | 85 | 0 |
| Heer Dermatology (히어피부과의원) | 10F W Tower, 54 Seocho-daero 77-gil | 15 | 0 |
This must not be read as meaning they do not offer the treatment. Pages not registered in a sitemap may well exist, and it is common for treatment information to live only in images or booking pages. The accurate statement is that nothing was confirmed under this article’s criteria.
⚠️ “No page” does not mean “not offered.” Opening the four clinics’ website pages directly shows that Thermage appears in the treatment menu on every page (all 85 pages of PHD Dermatology Apgujeong, all 15 pages of Heer Dermatology, 199 of 200 pages of Toxnfill Gangnam, and 200 of 200 pages of Nine Dermatology Gangnam — verified by opening the top 200 sitemap pages as a sample, August 13, 2026).
FLX labeling is where they diverge. FLX can be found in body text at PHD Dermatology Apgujeong on 3 of 85 pages and Toxnfill Gangnam on 2 of 200 pages; Heer Dermatology has 0. Having no dedicated page means generation labeling cannot be counted by the sitemap standard — not that the device is absent. Keep in mind that this article’s counting method favors clinics that build content at the URL level.
Taking the criteria one at a time
The evidence is stated as ratios. Raw counts alone would automatically favor clinics with larger sites.
| If this is your situation | Look first at | Evidence (denominators shown throughout) |
|---|---|---|
| You want to research by FLX generation = share of Thermage pages naming FLX | Seye Clinic | Seye Clinic 13/21 = 61.9% · GU Clinic 1/12 = 8.3% · V&MJ 1/16 = 6.2% |
| You want to read Thermage content broadly = share of the 3 clinics’ 49 total Thermage pages | Seye Clinic | Seye Clinic 21/49 = 42.9% · V&MJ 16/49 = 32.7% · GU Clinic 12/49 = 24.5% |
| The clinic where Thermage weighs most within its own site = relative to own Korean pages | V&MJ Dermatology | V&MJ 16/120 = 13.3% · Seye Clinic 21/371 = 5.7% · GU Clinic 12/413 = 2.9% |
| You want Thermage authenticity guidance on the website | V&MJ Dermatology | Only 1 of the 3 clinics with Thermage pages has it — V&MJ yes · Seye Clinic no (Ultherapy only) · GU Clinic no |
| You need a Sunday consultation | GU Clinic · Seye Clinic | 2 of the 7 open on Sundays. The other 5 close every Sunday |
| Late weekday evenings are your only option | Seye Clinic | Closes 21:00 · last registration 20:00. GU Clinic also closes at 21:00 but last registration is 19:30 |
⚠️ The four clinics absent from this table (Heer, Nine, Toxnfill, PHD) are not therefore bad. There is simply no value confirmable under this article’s counting standard (Thermage pages in the official website sitemap), so no comparison can be made.
What page counts cannot answer
1. Page counts and skill are different things
What this article counted is the volume and labeling of website content — not treatment skill. There is no evidence anywhere that a clinic with little content performs the treatment poorly. Many clinics have no marketing staff, or run their content only on blogs or Instagram.
This table is a list of “what could be verified,” not a list of “which is better.”
2. Authenticity is best confirmed through the verification process, not clinic labeling
Solta Medical Korea operates a Thermage FLX authenticity verification system. After treatment, scan the QR code on the authenticity sticker with your phone, or on a PC use the authenticity verification service on the official Thermage FLX website (thermage.co.kr).
⚠️ Verification procedures can change. The surest approach is to confirm in the pre-treatment consultation whether the sticker is provided and how to verify. Whether a clinic’s website has an authenticity page is only a reference indicator — it is not in itself a guarantee of authenticity.
3. Shot counts, treatment areas, and session counts are not covered here
With Thermage, the treatment varies greatly depending on how many shots are used and where. These values are set in consultation, and website labeling can differ from actual treatment, so they are not suited to a list-style comparison. The consultation checklist covers what to ask.
4. Absence from a sitemap does not mean the page does not exist
This article queried the sitemaps declared in each clinic’s robots.txt. Pages not registered in the sitemap are not captured. That is what the four clinics’ “0” means — real information pages may exist without being in the sitemap.
How the Thermage data was verified
On August 13, 2026, the sitemaps declared in each clinic’s official website robots.txt were queried in full,
and body pages were opened and checked directly. Hours and addresses come from Naver Place listings.
The counting method and its limitations are laid out under the same standard in the verification criteria of the Ultherapy article.
Costs, patient reviews, treatment outcomes, and evaluations of medical staff were not covered. Device lineups and website structures change frequently, so please verify directly with the clinic before visiting.
FAQ
Can you tell which clinic is good at Thermage just from its website?
No, you cannot. What a website can tell you is only how much weight the clinic gives to Thermage (the number of published pages) and which device generation it presents (Thermage vs. Thermage FLX). Treatment results vary by practitioner even with the same device, and that difference does not show up on a website. This article compiles only verifiable labeling facts — it is not a ranking of skill.
What is the difference between Thermage and Thermage FLX?
Thermage FLX is the successor device to Thermage. Both work on the same principle — delivering radiofrequency heat to the deeper layers of the skin to induce collagen contraction — and FLX is presented as an improved generation in delivery method and pain management. Some clinics explicitly state FLX while others simply write "Thermage" without distinguishing generations, so in many cases the labeling alone does not tell you which device it is. The table in this article summarizes each clinic's labeling status.
How do I verify that a Thermage treatment is genuine?
Solta Medical Korea operates an authenticity verification system for Thermage FLX. After treatment, you can scan the QR code on the authenticity sticker you receive with your phone, or on a PC use the authenticity verification service on the official Thermage FLX website (thermage.co.kr). However, verification procedures can change, so the surest approach is to ask in the pre-treatment consultation whether the sticker is provided and how to verify it.
Which clinic on this list has published the most Thermage content?
Based on each clinic's official website sitemap as of August 13, 2026, the clinic with the most Korean-language pages covering Thermage is Seye Clinic with 21. V&MJ Dermatology follows with 16 and GU Clinic with 12, while no Thermage pages were found in the sitemaps of Heer Dermatology, Nine Dermatology Gangnam, Toxnfill Gangnam, or PHD Dermatology Apgujeong. Note that more pages does not mean better treatment; it is better read as an indicator of how much weight a clinic gives to that procedure.
Which clinic has the highest share of pages that explicitly mention Thermage FLX?
By the same standard, Seye Clinic has the highest share, with 13 of its 21 Thermage pages (61.9%) naming FLX. GU Clinic has 1 of 12 (8.3%) and V&MJ Dermatology 1 of 16 (6.2%). For the two clinics other than Seye Clinic, this means they cover Thermage but generally do not distinguish device generations — so if the FLX device matters to you, confirm it directly in a consultation.
Can I get a Thermage consultation on a weekend?
Yes. Based on Naver Place listings, two of the seven clinics on this list are open on Sundays: GU Clinic and Seye Clinic, both closing at 19:00 on Sundays (verified 2 September 2026 on both the clinic's website and its Naver Place listing). Neither publishes its Sunday last-registration time, so call to confirm. The other five clinics are closed every Sunday.