Dermatology Clinics Near Sinnonhyeon Station: 5 Compared on English Support, Hours and Walking Distance
In one line: Sinnonhyeon Station sits on the Sinbundang and Line 9 routes in southern Seoul, and the dermatology clinics around it are clustered tightly enough that three of the five in this guide share one street.
If you are looking for a dermatology clinic near Sinnonhyeon Station and you do not read Korean, the list you find is usually not the list you need. Search results rank clinics by popularity in Korean. They do not tell you which ones publish anything you can actually read.
That turns out to be the sharpest split in this group. Of the five clinics here, two publish substantial English-language information and three publish none at all.
This guide compares five clinics on four things that can be checked from public sources: English-language coverage, opening hours, last-entry times and exact address. Every value was checked on 13 August 2026 against Naver Place listings and each clinic’s own sitemap. Where a value could not be confirmed, it is marked as not confirmed rather than guessed.
For a wider view of the district, see Gangnam skin clinic opening days.
In this guide
- The five clinics at a glance
- English coverage, in short
- How far apart they actually are
- Individual notes
- Which one fits which situation
- What this guide cannot tell you
- How this guide was checked
The five clinics at a glance
Checked 13 August 2026. English page counts come from each clinic’s own sitemap; hours come from their Naver Place listing.
| Clinic | Address | English pages | Weekday close | Last entry | Sunday |
|---|---|---|---|---|---|
| GU Clinic Gangnam Branch | 54 Seocho-daero 77-gil, W Tower, 3F–4F | 410 of 1,562 | 21:00 | 19:30 | 10:30–19:00 † |
| Seye Clinic | 55 Seocho-daero 77-gil, Apro Square, 10F | 374 of 1,763 | 21:00 | 20:00 | 10:30–19:00 |
| Heer Dermatology Clinic | 54 Seocho-daero 77-gil, W Tower, 10F | 0 of 15 | 19:00 | not published | Closed |
| Nine Dermatology Gangnam Branch | 447 Gangnam-daero, 8F / 9F | 0 of 496 | 20:00 | not published | Closed |
| Toxnfill Gangnam | 415 Gangnam-daero, Daedong Building, 10F / 11F | 0 of 250 | 20:00 | 19:30 | Closed |
What the table shows immediately
- Three of the five publish no English at all. Heer Dermatology Clinic, Nine Dermatology Gangnam Branch and Toxnfill Gangnam are Korean-only sites. Nine Dermatology Gangnam Branch has 496 pages and not one of them is in English
- The two that do publish English publish a lot of it. GU Clinic Gangnam Branch 410/1,562 = 26.2% of its site; Seye Clinic 374/1,763 = 21.2%
- The same two are the only ones open on Sunday — GU Clinic to 19:00 † , Seye Clinic to 19:00
- † GU Clinic’s standing Saturday, Sunday and holiday hours are 10:30–19:00 (verified 2 September 2026 on both the clinic’s website and its Naver Place listing); it is closed on Seollal and Chuseok day.
- Three clinics share one street and two of those share one building
- Closing time and last entry are not the same number. GU Clinic Gangnam Branch and Seye Clinic both close at 21:00 on a weekday but stop taking patients at 19:30 and 20:00 respectively
English coverage, in short
Two of the five publish English at any scale — GU Clinic Gangnam Branch and Seye Clinic, both running four language versions. Heer Dermatology Clinic, Nine Dermatology Gangnam Branch and Toxnfill Gangnam are Korean-only. The full page counts and per-procedure breakdown are in the Gangnam guide.
⚠️ A published English page is not an English consultation. Only the clinic can confirm the second — put it in your booking message.
How far apart they actually are
This is the part a map view flattens.
| Location | Clinics |
|---|---|
| 54 Seocho-daero 77-gil (W Tower) | GU Clinic Gangnam Branch (4F) · Heer Dermatology Clinic (10F) |
| 55 Seocho-daero 77-gil (Apro Square) | Seye Clinic (10F) |
| Gangnam-daero | Nine Dermatology Gangnam Branch (447) · Toxnfill Gangnam (415) |
GU Clinic Gangnam Branch and Heer Dermatology Clinic are in the same building, on different floors. Seye Clinic is at the neighbouring number on the same street. If you want to compare consultations in person on one trip, those three are the practical set.
Nine Dermatology Gangnam Branch and Toxnfill Gangnam are on Gangnam-daero, which is closer to Gangnam Station. They are still walkable but they are a different errand, not part of the same cluster.
Individual notes
GU Clinic Gangnam Branch
54 Seocho-daero 77-gil, W Tower, floors 3 and 4. 410 English pages, the largest English section in this group, and four site languages. Weekdays 10:30–21:00 with last entry at 19:30; Sunday 10:30–19:00; no Sunday last-entry time is published. Its Naver Place listing records no fixed weekly closing day.
Two things to plan around. The 90-minute gap between closing and last entry is the widest here — arriving at 20:00 on a weekday is too late even though the clinic is open. Its Saturday, Sunday and public-holiday hours are the same: 10:30–17:00.
⚠️ Public-holiday hours change more often than weekday ones. Call ahead if your visit falls on one.
Seye Clinic
55 Seocho-daero 77-gil, Apro Square, 10th floor, directly across from W Tower. 374 English pages and four site languages. Weekdays 10:30–21:00 with last entry at 20:00; Sunday and public holidays 10:30–19:00. No separate Sunday last-entry time is published.
Its Sunday and public-holiday hours are the same — 10:30–19:00 on Sunday and on both 15 and 17 August 2026. On procedure-specific English pages it leads GU Clinic Gangnam Branch — 27 for ultherapy and 22 for thermage.
Heer Dermatology Clinic
54 Seocho-daero 77-gil, W Tower, 10th floor — the same building as GU Clinic Gangnam Branch. The site has 15 pages in total and none in English. Weekdays 10:00–19:00, closed every Sunday, and closed across 15, 16 and 17 August 2026.
A small website does not mean a small practice. It means there is very little to check in advance, in any language.
Nine Dermatology Gangnam Branch
447 Gangnam-daero, floors 8 and 9. 496 pages, none in English. Weekdays 10:30–20:00, closed every Sunday, open 10:00–17:00 on both 15 and 17 August 2026. No last-entry time is published.
Toxnfill Gangnam
415 Gangnam-daero, Daedong Building, floors 10 and 11. 250 pages, none in English. Weekdays 10:00–20:00 with last entry 19:30; Saturday 10:00–17:00 with last entry 16:30. Closed every Sunday and closed on 17 August 2026.
Its 15 August entry is filed as a normal Saturday rather than a public holiday, so its ordinary Saturday hours are visible in the listing.
Which one fits which situation
| If this is you | Look at | Why |
|---|---|---|
| You need to read about the procedure in English first | GU Clinic Gangnam Branch | English share of site — GU Clinic Gangnam Branch 410/1,562 = 26.2% · Seye Clinic 374/1,763 = 21.2% · the other three 0% |
| You already know you want ultherapy or thermage | Seye Clinic | English pages on those two procedures — Seye Clinic 27 and 22 · GU Clinic Gangnam Branch 15 and 11 · the other three 0 |
| Sunday is your only free day | GU Clinic Gangnam Branch or Seye Clinic | Open on Sunday: 2 of the 5. The other three close every Sunday |
| You will arrive after work on a weekday | Seye Clinic | Last entry 20:00 against a 21:00 close. GU Clinic Gangnam Branch closes at the same 21:00 but stops at 19:30 |
| You want to compare two clinics in one trip | GU Clinic Gangnam Branch and Heer Dermatology Clinic | Same building, 54 Seocho-daero 77-gil. Seye Clinic is across the street at number 55 |
| You are coming from Gangnam Station | Nine Dermatology Gangnam Branch or Toxnfill Gangnam | Both on Gangnam-daero rather than Seocho-daero 77-gil |
⚠️ The three clinics with no English pages are not worse clinics. They are harder to research from outside Korea, which is a different problem.
What this guide cannot tell you
1. Published English is not the same as spoken English
We counted pages, not conversations. A clinic with 410 English pages may still run consultations only in Korean on a given day, and a Korean-only site may have a staff member who speaks English well. Confirm this directly when you book — it is the single most useful question you can ask.
2. This is not a ranking
There is no judgement of quality here. We compared four verifiable facts and stopped. We did not look at doctors, equipment, results or patient reviews, and none of those appear in the table.
3. Five is not every clinic near Sinnonhyeon Station
We checked five. There are more. A clinic being absent from this list means we did not check it, not that it falls short.
4. Hours change, and public holidays are the least reliable entry
The week we checked included 15 August, a public holiday in Korea, and 17 August, a substitute holiday. Clinics set these individually and some had not filed a holiday-specific schedule at all. Recheck the week you travel.
How this guide was checked
| Written by | K-Travel Guide editorial team |
| Last checked | 13 August 2026 |
| Primary sources | Each clinic’s own sitemap, declared in its robots.txt (page counts, language versions) · Naver Place listings (hours, last entry, address) |
| Counting method | A page counts as English if its URL sits under an /en/ or /us/ path. The ultherapy and thermage figures quoted in the text are English-path pages only, matched on ulther or thermage in the URL — the Korean-site counts differ slightly and are not used here |
| Unconfirmed values | Left as “not published” in the table. Nothing was estimated |
| Rechecked | Quarterly, and whenever hours are reported to have changed |
| Not covered | Prices, patient reviews, treatment outcomes, assessment of doctors |
Opening hours and website structure change often. Confirm directly with the clinic before you travel.
FAQ
Which dermatology clinics near Sinnonhyeon Station publish information in English?
Two of the five in this guide do. GU Clinic Gangnam Branch publishes 410 English pages out of 1,562 total, and Seye Clinic publishes 374 out of 1,763. The other three — Heer Dermatology Clinic, Nine Dermatology Gangnam Branch and Toxnfill Gangnam — publish no English pages at all in their sitemaps; their sites are Korean only. This is the single biggest practical split in the group. It says nothing about the quality of treatment, but it does decide whether you can read about a procedure before you walk in.
Are any of them open on Sunday?
Two are. GU Clinic Gangnam Branch runs 10:30 to 19:00 on Sunday (verified 2 September 2026 on both the clinic's website and its Naver Place listing) and Seye Clinic to 19:00. The other three list Sunday as a fixed weekly closing day. Neither publishes a separate Sunday last-entry time — the last-entry times in the table are weekday values. Only two of the five here open on Sunday, so if Sunday is your only free day it is worth putting that filter first.
How close together are these clinics?
Three of the five are on the same street. GU Clinic Gangnam Branch and Heer Dermatology Clinic are in the same building — 54 Seocho-daero 77-gil, W Tower, with GU Clinic Gangnam Branch on floor 4 and Heer on floor 10. Seye Clinic is at number 55 on the same street, directly opposite. Nine Dermatology Gangnam Branch and Toxnfill Gangnam sit on Gangnam-daero, closer to Gangnam Station than to Sinnonhyeon, so they are a separate short walk rather than part of the same cluster.
What time do they actually stop taking patients?
Earlier than the posted closing time, and the gap varies. On weekdays GU Clinic Gangnam Branch closes at 21:00 but takes its last booking at 19:30, a 90-minute gap. Seye Clinic also closes at 21:00 but takes its last booking at 20:00, a 60-minute gap. Toxnfill Gangnam closes at 20:00 with last booking at 19:30. Nine Dermatology Gangnam Branch and Heer Dermatology Clinic do not publish a last-entry time. As a rule, subtract two hours from the closing time when you plan.
Is this guide a ranking?
No. This is not a ranking and it carries no judgement of quality. We compared four things that can be verified from public listings — English-language coverage, opening hours, last-entry times and address — and nothing else. We did not assess doctors, equipment or results, and we did not use patient reviews. Five clinics is also not every clinic near Sinnonhyeon Station; it is the set we checked.
What should I ask before booking as a foreign patient?
Three things the listings cannot answer. First, whether a consultation in English is actually available on the day you plan to come — published English pages and an English-speaking consultation are not the same thing. Second, whether the doctor who consults is the doctor who performs the procedure. Third, what the device is and which generation, since two clinics may both list the same treatment name while using different equipment. Ask these in the booking message rather than on arrival.