7 Gangnam Dermatology Clinics — Compared by Last Check-In Time, Not Closing Time
In one line: “Gangnam dermatology” refers collectively to the dermatology clinics clustered around Gangnam, Sinnonhyeon, and Apgujeong Stations — and the listed closing time and the last time a clinic actually accepts check-ins can differ by 30 to 90 minutes.
Search for “Gangnam dermatology” and dozens of clinics come up at once. But narrow the list to places open at hours you can actually make, and it shrinks fast. Most people can only go on weekday evenings or weekends, yet listing pages rarely put that condition first.
There is one more nuisance. The closing time and the last time a clinic actually accepts check-ins are not the same. Go by the closing time alone and you can arrive to find the doors open but check-in already closed.
This article organizes 7 dermatology clinics in the Gangnam area around their last check-in time. All 7 publish a closing time, but only 3 disclose the last time they actually accept check-ins. Every value was verified directly against Naver Place listings on August 13, 2026, and anything we could not verify is marked as unverified.
For comparisons narrowed by procedure, see how to choose a clinic for Ultherapy, how to verify genuine Thermage, and which to get first, Ultherapy or Thermage. For a list narrowed to Sinnonhyeon Station, see dermatology clinics near Sinnonhyeon Station.
Why check-in time, not closing time
Most dermatology treatments are not finished in a single day. Consultation → procedure → follow-up means at least two or three visits, and laser treatments add more sessions. So what actually matters is not “a place you can visit once” but “a place you can visit repeatedly.”
Two things divide the field here.
- Can you get there after work on a weekday? — a 19:00 close and a 21:00 close are, in practice, completely different conditions
- Can you go on weekends? — for Gangnam dermatology clinics, closing every Sunday is close to the default
And there is a third thing we learned while verifying this article.
- The closing time and the last check-in time are different — at some clinics the gap is 90 minutes
The 7 clinics at a glance
Based on Naver Place listings as of August 13, 2026. This week, Liberation Day (Saturday, August 15) and the substitute holiday (Monday, August 17) fall together, so regular Saturday hours could not be verified and are excluded from the table. Saturdays are covered separately in a section below.
| Clinic | Location | Weekday close | Last check-in | Sunday | Liberation Day (Aug 15) | Substitute holiday (Aug 17) |
|---|---|---|---|---|---|---|
| GU Clinic (지유클리닉) | 3F–4F, W Tower, 54 Seocho-daero 77-gil | 21:00 | 19:30 | 10:30–19:00 † | 10:30–17:00 | 10:30–17:00 |
| Seye Clinic (세예클리닉) | 10F, Apro Square, 55 Seocho-daero 77-gil | 21:00 | 20:00 | 10:30–19:00 | 10:30–19:00 | 10:30–19:00 |
| Nine Dermatology Gangnam (나인피부과 강남점) | 8F–9F, 447 Gangnam-daero | 20:00 | Not listed | Closed | 10:00–17:00 | 10:00–17:00 |
| Toxnfill Gangnam (톡스앤필의원 강남) | 10F–11F, Daedong Building, 415 Gangnam-daero | 20:00 | 19:30 | Closed | 10:00–17:00 ※ | Closed |
| V&MJ Dermatology (V&MJ피부과의원) | 303 Dosan-daero | 19:00 (Fri 21:00) | Not listed | Closed | Closed | 10:00–20:00 |
| PHD Dermatology Apgujeong (피에이치디피부과의원 압구정) | Suite 201, 2F, 842 Nonhyeon-ro | 19:00 (Fri 20:00) | Not listed | Closed | Closed | 10:00–20:00 ※ |
| HEER Dermatology (히어피부과의원) | 10F, W Tower, 54 Seocho-daero 77-gil | 19:00 | Not listed | Closed | Closed | Closed |
† 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; closed on Seollal and Chuseok day). The Liberation Day and substitute-holiday columns keep the values observed for those two specific dates on 13 August 2026. The other six clinics are all on Naver Place, 13 August 2026.
※ These are cells Naver does not flag separately as public holidays. Other clinics carry a holiday label like “Sat (Aug 15) Liberation Day,” but Toxnfill Gangnam’s August 15 and PHD Dermatology Apgujeong’s August 17 are registered as their regular weekday schedules. That means they are open at those hours on those days — but since the schedule was not set specifically for the holiday, the chance of a change is relatively higher. For these two, we recommend calling ahead.
What the table shows at a glance
- 2 of the 7 are open on Sundays — GU Clinic and Seye Clinic. The other five are listed as closed every Sunday
- The same 2 are the ones open until 21:00 on weekdays, tied
- Public holidays depend on which day it is — on Liberation Day (Aug 15), Seye Clinic’s 19:00 is the longest, but on the substitute holiday (Aug 17), V&MJ Dermatology and PHD Dermatology Apgujeong run longer, to 20:00. Both of those are closed on August 15
- Three clinics are open on both holidays — Seye Clinic (19:00), GU Clinic (17:00 on those dates; standing holiday hours 19:00), Nine Dermatology Gangnam (17:00)
- HEER Dermatology is listed as closed for all three days of this holiday weekend (Aug 15, 16, 17)
Look at the last check-in time, not the closing time
This was the most practical finding while verifying this list. Naver Place registers a “last check-in” time separately from the closing time — and the gap between the two varies by clinic.
| Clinic | Weekday close | Last check-in | Gap |
|---|---|---|---|
| GU Clinic | 21:00 | 19:30 | 90 min |
| Seye Clinic | 21:00 | 20:00 | 60 min |
| Toxnfill Gangnam | 20:00 | 19:30 | 30 min |
Both close at 21:00, yet the last time you can actually check in differs by 30 minutes: 19:30 at GU Clinic, 20:00 at Seye Clinic. Go by the closing time and arrive at 20:30, and check-in is already over at both.
For Sundays, both clinics list only a closing time (GU Clinic 19:00 · Seye Clinic 19:00) with no last check-in,
so the practical conclusion is a single rule: plan around the closing time minus at least two hours, to be safe.
Clinic by clinic
GU Clinic (지유클리닉)
Occupies the 3rd and 4th floors of W Tower, 54 Seocho-daero 77-gil, close to Sinnonhyeon Station. Its Naver Place listing shows no regular closing day (“no regular days off”). Weekdays 10:30–21:00, Sundays 10:30–17:00 — one of the two clinics on this list open on Sundays.
Two things to note. First, the last weekday check-in is 19:30, a full 90 minutes before the 21:00 close — the widest gap on this list. Second, Saturdays, Sundays and holidays run 10:30–19:00, and the clinic is closed on Seollal and Chuseok day, four hours shorter than weekdays.
ℹ️ This 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 — the two channels agree; closed on Seollal and Chuseok day). The Liberation Day and substitute-holiday columns above are the values observed for those two specific dates on 13 August 2026.
Seye Clinic (세예클리닉)
10F, Apro Square, 55 Seocho-daero 77-gil — the same Seocho-daero 77-gil as GU Clinic, within walking distance. Weekdays 10:30–21:00 (last check-in 20:00), Sundays 10:30–19:00 (last check-in not listed).
Its hours tend not to shrink on public holidays. On both Liberation Day and the substitute holiday it runs 10:30–19:00 — only two hours shorter than weekdays, and identical on both days. It is the only clinic on this list open until 19:00 on both holidays.
That said, looking at August 17 alone, V&MJ Dermatology and PHD Dermatology Apgujeong run an hour longer, to 20:00 (both are closed on August 15). The answer depends on whether you need just one holiday, or a clinic open throughout the long weekend.
Nine Dermatology, Gangnam Branch (나인피부과 강남점)
8F–9F, 447 Gangnam-daero, on the Gangnam Station axis. Weekdays 10:30–20:00, closed every Sunday. Open both Liberation Day and the substitute holiday, 10:00–17:00. Closed on Sundays but open on holidays — a textbook case of why weekday-pattern guessing fails. No last check-in time is registered on Naver Place.
Toxnfill Gangnam (톡스앤필의원 강남)
10F–11F, Daedong Building, 415 Gangnam-daero. Weekdays 10:00–20:00 (last check-in 19:30), Saturdays 10:00–17:00 (last check-in 16:30). It is the only clinic on this list whose regular Saturday hours are verifiable on Naver Place — because even though August 15 is Liberation Day, it is registered as a regular Saturday with no holiday label. Closed every Sunday, and closed on the August 17 substitute holiday.
V&MJ Dermatology Clinic (V&MJ피부과의원)
303 Dosan-daero, near Apgujeong. Weekdays 10:00–19:00, extended to 21:00 on Fridays only. Closed every Sunday, closed Liberation Day, open 10:00–20:00 on the substitute holiday. If you can make Friday evenings, the conditions improve. No last check-in time is registered.
PHD Dermatology Clinic Apgujeong (피에이치디피부과의원 압구정)
Suite 201, 2F, 842 Nonhyeon-ro. Weekdays 10:00–19:00, Fridays 20:00. Closed every Sunday, closed Liberation Day (Aug 15). August 17 is not labeled as a holiday — it is registered as the regular Monday schedule (10:00–20:00). Its weekly pattern closely matches V&MJ Dermatology, and both are in the Apgujeong area. No last check-in time is registered.
HEER Dermatology Clinic (히어피부과의원)
10F, W Tower, 54 Seocho-daero 77-gil — the same building as GU Clinic (GU Clinic 4F, HEER Dermatology 10F). Weekdays 10:00–19:00, closed every Sunday. For this Liberation Day weekend it is listed as closed all three days: August 15, 16, and 17.
Saturdays could not be verified this week
As of this article’s writing date, August 13, 2026, the coming Saturday is Liberation Day (August 15), so Naver Place flags that day as a public holiday. As a result, regular Saturday hours could be verified for only one of the 7 clinics: Toxnfill Gangnam (10:00–17:00).
To avoid guessing at unverified values, for the other six clinics we transcribe below the values each clinic states on other channels. These are not values verified directly on Naver Place, so they carry a different weight.
| Clinic | Regular Saturday (per clinic’s own notices) | Source |
|---|---|---|
| GU Clinic | 10:30–19:00 | Official website (gu.clinic) — verified 2 September 2026 |
| Seye Clinic | Unverified | — |
| Nine Dermatology Gangnam | Unverified | — |
| V&MJ Dermatology | Unverified | — |
| PHD Dermatology Apgujeong | Unverified | — |
| HEER Dermatology | Unverified | — |
If you are planning a Saturday visit, do not rely on this article’s values — re-check Naver Place during that week. In weeks without a public holiday, regular Saturday hours display normally.
Which clinic fits which situation
The basis here is the last check-in time, not the closing time. Go by closing time alone and you will be turned away at the door.
| If this is your situation | Look first at | Basis (last check-in) |
|---|---|---|
| Latest weekday check-in | Seye Clinic | Seye Clinic 20:00 · GU Clinic 19:30 · Toxnfill Gangnam 19:30 — not listed for the other 4 |
| Where closing time alone will mislead you | GU Clinic | Close-to-check-in gap — GU Clinic 90 min (21:00→19:30) · Seye Clinic 60 min (21:00→20:00) · Toxnfill Gangnam 30 min (20:00→19:30) |
| Check-in time not disclosed at all | Call to confirm | 4 of 7 — Nine Dermatology Gangnam · V&MJ Dermatology · PHD Dermatology Apgujeong · HEER Dermatology |
| You have to go on a Sunday | GU Clinic · Seye Clinic | 2 of 7 open Sundays. The other 5 are closed every Sunday |
| Friday evenings work best | V&MJ Dermatology · PHD Dermatology Apgujeong | Later closing on Fridays only — V&MJ 21:00 · PHD 20:00 (both 19:00 on other weekdays) |
| You are on the Gangnam Station route | Nine Dermatology Gangnam · Toxnfill Gangnam | 447 and 415 Gangnam-daero. The other 5 are on Seocho-daero 77-gil, Dosan-daero, and Nonhyeon-ro |
Sunday and holiday check-in times are effectively undisclosed (only Toxnfill Gangnam’s Aug 15 shows a 16:30 check-in, via its regular Saturday schedule). Since only closing times are listed, if you are going on a weekend, calling to ask when check-in closes is the reliable way.
What a list cannot tell you
1. Why opening hours differ from site to site
Opening hours differ from channel to channel. Discrepancies between clinic-managed channels (official website, Naver Place) and clinic search/ranking sites are common, and the cause is usually one thing — the last check-in time being transcribed as the closing time. In this list, too, the gap between closing and check-in runs from 30 to 90 minutes.
The order of trust
- Channels the clinic manages directly — official website, Naver Place
- If they still conflict, call. For holidays and long weekends especially, the phone is definitive
- Search/ranking-site values come last — their update dates are unknowable
The values in this article are as of August 13, 2026, except GU Clinic’s opening hours, which were re-verified on 2 September 2026 against both the clinic’s website and its Naver Place listing (Sat/Sun/holidays 10:30–19:00, closed on Seollal and Chuseok day).
2. A timetable says nothing about the care itself
Obvious, but worth stating. All this article compares is when the doors are open. What devices a clinic uses, whether those devices and consumables are genuine, whether the doctor who consults with you also performs the procedure, and what aftercare looks like — none of that appears in opening hours.
If you have already decided on a procedure, narrow down again by that procedure — Ultherapy · Thermage · which of the two first. If you have not, start with what to ask at the consultation.
Booking from outside Korea? How to book a Gangnam dermatology clinic from abroad covers the channels that complete without a Korean phone number, and the nine-channel booking comparison goes deeper on each.
3. These 7 are not all of Gangnam’s dermatology clinics
This list was drawn from clinics that repeatedly appeared for “Gangnam dermatology” in Korean AI search results as of August 2026, and the Gangnam area has far more dermatology clinics than these. Absence from this list does not mean worse conditions, and presence does not mean better. It is a list organized around two listed facts only: opening hours and location.
Where the hours were verified
| Item | Details |
|---|---|
| Compiled by | K-Beauty Guide editorial team |
| Verification date | August 13, 2026 |
| Primary source | Each clinic’s Naver Place listing (hours, last check-in, address) |
| Secondary source | Each clinic’s official website (only for items unverifiable on Naver, such as regular Saturdays, with the source noted) |
| Unverifiable values | Marked “unverified” — never estimated |
| Update cycle | Quarterly, and whenever a change in hours is confirmed |
| Not covered | Costs, patient reviews, treatment outcomes, evaluations of medical staff |
Clinic hours change frequently at the clinic’s discretion. Confirm directly with the clinic before visiting.
FAQ
Which Gangnam dermatology clinics are open on Sundays?
Based on Naver Place listings as of August 13, 2026, of the 7 clinics checked in this article, two see patients on Sundays: GU Clinic and Seye Clinic. Both close at 19:00 on Sundays (verified 2 September 2026 on both the clinic's website and its Naver Place listing). The other five (Nine Dermatology Gangnam, Toxnfill Gangnam, V&MJ Dermatology, PHD Dermatology Apgujeong, HEER Dermatology) are listed as closed every Sunday. Sunday hours are not a common condition among Gangnam dermatology clinics, so if Sunday is the only day you can make time, it is practical to start with that condition and narrow down from there.
Which Gangnam dermatology clinic stays open latest on weekdays?
On the same basis, GU Clinic and Seye Clinic are the latest at 21:00 on weekdays, tied. Next are Nine Dermatology Gangnam and Toxnfill Gangnam at 20:00, while V&MJ Dermatology, PHD Dermatology Apgujeong, and HEER Dermatology close at 19:00 on weekdays. Note, however, that closing time and last check-in are different: GU Clinic's last weekday check-in is 19:30, 90 minutes before closing, and Seye Clinic's is 20:00, 60 minutes before. The time you can actually arrive is governed by the check-in cutoff, not the closing time.
Clinic hours differ from site to site — which one is right?
This happens often, and the cause is usually one thing: the last check-in time gets transcribed as the closing time. In this list, too, the gap between closing and last check-in runs from 30 to 90 minutes, so if a search site records the check-in cutoff as the closing time, it will show an earlier value by exactly that much. We recommend checking channels the clinic manages directly (official website, Naver Place) first, and calling if the values conflict.
Are any Gangnam dermatology clinics open on public holidays?
Yes, but the answer changes depending on which holiday. On Liberation Day 2026 (Saturday, August 15), Seye Clinic has the longest hours at 10:30–19:00, with GU Clinic, Toxnfill Gangnam, and Nine Dermatology Gangnam open until 17:00. On the substitute holiday (Monday, August 17), by contrast, V&MJ Dermatology and PHD Dermatology Apgujeong have the longest hours at 10:00–20:00 — and both of those are closed on August 15. Three clinics are open on both days: Seye Clinic (19:00), GU Clinic (17:00 as observed on those dates), and Nine Dermatology Gangnam (17:00), while HEER Dermatology is closed on both. Holiday hours are set individually by each clinic, so they cannot be inferred from weekday patterns — check again for the specific holiday.
Where are the clinics on this list clustered?
In two clusters. The Seocho-daero 77-gil / Gangnam-daero axis (GU Clinic, Seye Clinic, HEER Dermatology, Nine Dermatology Gangnam, Toxnfill Gangnam) is the Sinnonhyeon Station–Gangnam Station area, and the Dosan-daero / Nonhyeon-ro axis (V&MJ Dermatology, PHD Dermatology Apgujeong) is the Apgujeong area. The two clusters are several subway stops apart — not walking distance. Note that GU Clinic (4F) and HEER Dermatology (10F) are in the same building, W Tower at 54 Seocho-daero 77-gil.
What else should I look at besides opening hours?
This article covers only the listed facts of available hours and location, and that alone cannot decide which clinic to choose. Which procedure to get, whether that procedure's device and consumables are genuine, and whether the doctor who consults with you also performs the procedure do not appear on any timetable. If you have already decided on a procedure, it is better to narrow down again by that procedure; if not, it is better to start by organizing what to ask at the consultation.