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Laser treatment room at Dear Clinic Cheongdam with several laser platforms and a powered treatment chair
Dear Clinic · Procedure Information · Safety
Energy Safety · Cheongdam, Gangnam

Laser Treatment Safety in Cheongdam, Gangnam, Seoul

Four energy classes run on this floor — low-fluence toning, vascular laser, radiofrequency microneedling and per-lesion ablative work — and each one carries its own named risk. Set out below: those risks, the readings taken before a setting is chosen, and who gets turned away.

Director-performed passes Per-lesion work from ₩10,000 (≈ $5) Open 365 days
Ask Whether Energy Work Suits You Read the Refusal List
The short answer

Why one safety answer cannot cover four different lasers

The word laser covers four separate jobs at this clinic, and the hazard changes with each. Pigment work can disturb pigment. Vascular work can leave the skin bruised. Needle radiofrequency puts heat under the surface. Ablative work makes a controlled wound that then has to heal cleanly.

Anyone searching for reassurance about lasers in Seoul is usually holding one worry at a time: a friend who came home with pale patches, a colleague whose cheeks went purple for a fortnight, a photograph of a crusted chin. Each belongs to a different machine and a different decision.

So this page is organised by energy class. Each section names what that class is documented to do when it is misapplied, what is read beforehand, and where the line sits. The routes themselves are described on the laser, pigment and acne hub, and the wavelength-by-wavelength tour lives on the laser treatment guide.

Cutera excel V vascular laser console with its touchscreen and delivery fibre
One console, one job. The safety question is decided per machine, and per face.
Named Risks by Class

The four energy classes here and what each is documented to do when it goes wrong

Low-fluence toning. Gentle passes at 1064 nm, delivered over a course. The pigmentary complication attached to this class in the literature is mottled hypopigmentation: patchy loss of colour, reported in melasma patients treated too frequently or for too long, and stubborn once it has arrived. Relapse of the original pigment is the other documented limit, and it is not a complication so much as a fact about pigment that had a cause. Richly pigmented skin can also answer heat with more pigment, which is post-inflammatory hyperpigmentation.

Vascular laser. Light tuned to haemoglobin, used on redness and visible vessels. Purpura — a deep bruise-coloured mark at the treated spot — is the characteristic short-term outcome, and comparative studies of 532 nm and pulsed dye devices are largely studies of how much of it each approach produces. Swelling for a day or two is ordinary. Crusting, blistering and a temporary lightening or darkening of the treated line are the less common ones, and recent sun exposure makes all of them likelier.

Radiofrequency microneedling. Needles carry heat below the surface. Here the failure mode is coupling: a needle that does not seat properly, a plate that is not flush against the skin, or energy delivered where the epidermis is not protected, and the result is a burn or a row of visible marks along the needle track. Pinpoint bleeding, grid-patterned redness and swelling for a day or two are the normal picture. On deeper skin tones the same heat can provoke pigment, so energy is dialled back.

Per-lesion ablative work. Removing a discrete mark with an ablative laser leaves a small open wound by design. That means the risks of a wound: infection if the crust is lifted or the site is kept wet, a depressed or raised mark if healing runs badly, and a pale or dark patch where the skin was. People who scar thickly are the group most carefully questioned before this route is agreed at all.

Individual responses differ, and nothing here forecasts what your own skin will do. It describes what has been published and what we watch for.

Before Anything Fires

Eye protection and skin-type reading as the two fixed steps of a laser visit

Two things happen on every laser appointment regardless of which console is wheeled in, and they are worth understanding because they are the parts patients can check for themselves.

Turned Away

Situations where we decline energy work or postpone the appointment at the door

Some of these end the conversation for now; some of them simply move it to a later date. All of them are better known before you book a flight.

One more category leads to a smaller plan instead of a refusal: dates too short for a paced course. A single appointment plus a written plan to take home is what we suggest for that trip.

After a Pass

What to tell the clinic after an energy session and how quickly it matters

Most of what follows a laser appointment is unremarkable and settles by itself. Warmth for a few hours, a flush that fades, mild swelling on a vascular day, pinpoint dots after needle work, a crust over an ablated mark. None of that needs a phone call.

Four things do. Pain that rises after the first day instead of falling. Redness that spreads outward, with heat, or with anything discharging from the site — the pattern that suggests infection. Blistering, or a crust that has come off early, because a wound left open behaves differently from one left alone. And any patch changing colour in a way you did not expect, lighter or darker, in the weeks that follow.

Timing is the whole point of telling us. Reported early, most of these change what happens next; waited out at home for a fortnight, several of them stop being fixable. Reception answers 365 days a year, holidays included, so there is no date on the calendar where a worry has to sit until Monday.

Between appointments the work is yours: daily sun protection, a simplified routine, no picking at a crust, nothing abrasive or acidic near a treated zone until you are told it is fine. Comfort measures during a session, and any product used afterwards, are confirmed with your director at consultation.

Front view of the EveLab Insight skin analysis device with its imaging array visible
Every follow-up starts with the same reading the first appointment started with, so that a change can be seen instead of remembered.
Dear, Knowhow

How energy risk is held down across the whole Dear Clinic laser menu

01 — THE FULL ARSENAL

Four energy classes competing for the same complaint

The largest single safety factor in laser work is whether a clinic owns more than one answer. Toning, vascular light, needle radiofrequency and ablative work all run on this floor, so a complaint belonging to haemoglobin is never treated as though it belonged to melanin.

02 — DIAGNOSIS FIRST

EVE Muse splits red from brown before a fluence is chosen

3D imaging with five light sources and AI analysis reads depth, vascularity and barrier condition, so the class is chosen from a finding.

03 — DIRECTOR-PERFORMED

The hand setting the energy is the hand that stops the pass

Sessions are director-performed. Lower the power, skip a zone, end the appointment early: on this menu those calls have to belong to whoever is holding the handpiece.

4
Energy classes on this floor
6
Reasons a visit is declined
6
Peer-reviewed references below
365
Days open each year

Responses vary by individual, by skin type and by what is being treated.

Published Lines

What each energy class on this page is listed at while you weigh the risk

Because the cautious way into any of these is a single appointment, the per-visit figures are the relevant ones on a safety page.

Energy classThe risk that governs itListed rate
Low-fluence toning, one visitMottled hypopigmentation with over-frequent courses; relapse of pigment₩200,000 (≈ $145)
Vascular laser, one visitPurpura at the treated spot; crusting where sun exposure is recent₩150,000 (≈ $105)
Radiofrequency microneedling, standard tipBurns and needle-track marks from poor coupling; pigment response on deeper tones₩250,000 (≈ $180)
Ablative work, per lesionWound infection, textural change, pale or dark patch at the site₩10,000 (≈ $5)

Every figure is published in Korean won and settled in won at the desk, and a passport from outside Korea adds no surcharge to any line. Anything beyond these four rows is quoted at the consultation before it is agreed, and the whole published menu sits on the full price list. Individual routes are described on the laser toning page, the Excel V page and the Potenza page.

In the clinic

The devices and hands behind this treatment

Jeisys Potenza RF microneedling system with both handpieces and its touchscreen showing the treatment interface
Needle depth and energy are entered for each zone, and can be lowered or abandoned mid-session.
Waiting nook and coffee bar along the treatment corridor at Dear Clinic Cheongdam
Where a postponed appointment gets rebooked when the skin is not ready that day.
Medical Team

Five doctors, one standard

Director-performed treatment is a Dear promise — your procedure is planned and performed by the doctors below.

Dr. Jemin Kim — Medical Director and Founder, Dear Clinic
Dr. Jemin Kim
Yonsei University College of Medicine
Medical Director · Founder
Dr. Sanghyun Lee — Director, Dear Clinic
Dr. Sanghyun Lee
Seoul National University College of Medicine
Director
Board-certified · Family Medicine
Dr. Seonhaeng Lee — Director of Aesthetic Medicine, Dear Clinic
Dr. Seonhaeng Lee
Chosun University College of Medicine · Residency, Samsung Medical Center
Director, Aesthetic Medicine
Dr. Daeun Jung — Director, Dear Clinic
Dr. Daeun Jung
Ajou University College of Medicine
Director
Board-certified · Family Medicine
Dr. Woojae Jung — Director of Aesthetic Medicine, Dear Clinic
Dr. Woojae Jung
Seoul National University — B.S. in Medicine
Director, Aesthetic Medicine
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FAQ

Laser safety at Dear Clinic, one question at a time

Is laser treatment safe on deeper skin tones?
It is routinely done, and the plan changes. Melanin absorbs energy that was aimed at something else, so post-inflammatory hyperpigmentation is the risk that governs every setting. Energy is kept conservative, intervals are stretched, recent sun exposure carries more weight, and the response at one appointment sets the next. The scan taken beforehand is what makes those adjustments specific to you.
Which laser at your clinic carries the highest risk of a burn?
Needle radiofrequency is the class where coupling failures produce burns and visible track marks, because heat is being delivered below the surface through needles. It is also the class where the operator has most control moment to moment: depth, power and pass count are entered zone by zone, and a zone can be abandoned mid-session if the skin reads hot.
Will a vascular laser session leave bruising?
Purpura at the treated spot is the characteristic outcome of this class, and the comparative literature on 532 nm and pulsed dye devices is largely about how much of it each produces. Expect a mark that behaves like a bruise and fades on a bruise's timetable. Individual variation is wide, so plan a treated vessel around anything photographic in your diary.
Can repeated toning damage skin over a course?
That is the documented concern for this class. Peer-reviewed work describes mottled hypopigmentation — a patchy loss of colour — in melasma patients whose low-fluence sessions ran too close together or too long, and it is difficult to correct once present. It is the reason a course here is counted out loud and reviewed at each stage.
Do I need to stop any medication before a laser appointment?
Bring the list and let your director decide. Anything that raises sensitivity to light is the category that matters most, and it includes things people do not think of as medication. Nothing should be stopped on the basis of a web page; the instruction, if any is needed, comes from the person who prescribed it and from your consultation here.
Why do you ask about sunbeds and beach holidays before booking?
A tan is extra pigment sitting exactly where the energy passes through. It raises the chance of a burn, a pale patch or a dark one, on every class described here. A recent sunburn or a deliberate tan postpones the appointment, and the postponement is not negotiable however short the trip.
What eye protection is used during a session?
Protection matched to the wavelength is worn by you and by everyone else in the room, on every appointment, without exception. Where work sits close to the eye, the shielding appropriate for it is explained before you lie down, and the choice is your director's to confirm at the consultation.
Can I have energy treatment while pregnant or breastfeeding?
Elective work is generally deferred, and anything that might reasonably continue is decided with you in advance rather than on the day. Tell us at the enquiry stage. It saves a wasted trip across the city and gives your director time to suggest something that does fit the season you are in.
I finished oral acne medication recently — can I still be treated?
We ask when the course ended, and if the answer is recent, energy work waits. Isotretinoin changes how skin repairs itself, and the ablative and needle-based parts of the menu are the ones most affected by that. Prescribing and monitoring that medication is not done here; it stays with the physician who started it.
What should I report after a session, and how urgently?
Four things, the same day you notice them: pain that climbs after the first day, redness spreading outward with heat or discharge, blistering or a crust that has lifted early, and any patch changing colour unexpectedly. Reported early, most of these alter what happens next. Reception answers 365 days a year, holidays included.
Can two laser routes be run on the same day?
Sometimes, and it depends on what each asks of the same skin. Stacking two heat-based passes in one sitting is usually split across separate visits here, while a vascular pass and a per-lesion removal can sit together more comfortably. Your director decides it at the reading, with barrier condition as the deciding factor.
Who performs the session, and can the settings change partway?
A director performs it, and yes. Tell us during the pass if a zone reads sharper than the rest; power and pass count are adjusted there and then, and a zone can be left out altogether. An appointment that ends early because the skin said so is a working appointment, and it is charged on what was treated.
Consultation

Ask whether energy work is sensible for your skin

Tell us how your skin has answered heat and light before, and what happened afterwards; we reply in English as soon as possible.

Scientific Evidence

Published work behind the risks named on this page

Six references, two per energy class where the class has a literature of its own. Two examine low-fluence toning of melasma, including the melanocyte changes seen in mottled hypopigmentation. Two compare vascular platforms in facial redness and telangiectasia. Two cover fractional radiofrequency microneedling, one against an ablative comparator and one as a meta-analysis.

They are listed as published, including the findings that are unflattering to a route, because a safety page assembled only from favourable work would not be one. None of them describes your skin, and none replaces the reading done in the room.

  1. Jang YH et al. Changes in Melanin and Melanocytes in Mottled Hypopigmentation after Low-Fluence 1,064-nm Q-Switched Nd:YAG Laser Treatment for Melasma. Annals of Dermatology. 2015. doi:10.5021/ad.2015.27.3.340
  2. Vachiramon V et al. Low-fluence Q-switched Nd: YAG 1064-nm laser and intense pulsed light for the treatment of melasma. Journal of the European Academy of Dermatology and Venereology. 2014. doi:10.1111/jdv.12854
  3. Uebelhoer NS et al. A Split-Face Comparison Study of Pulsed 532-nm KTP Laser and 595-nm Pulsed Dye Laser in the Treatment of Facial Telangiectasias and Diffuse Telangiectatic Facial Erythema. Dermatologic Surgery. 2007. doi:10.1111/j.1524-4725.2007.33091.x
  4. Nguyen L et al. Rosacea treatment with 532 nm KTP versus 595 nm pulsed dye laser—A prospective, controlled study. Journal of Cosmetic Dermatology. 2024. doi:10.1111/jocd.16300
  5. Hendel K et al. Fractional CO2-laser versus microneedle radiofrequency for acne scars: A randomized, single treatment, split-face trial. Lasers in Surgery and Medicine. 2023. doi:10.1002/lsm.23655
  6. Li J et al. Meta-analysis of fractional radiofrequency treatment for acne and/or acne scars. Journal of Cosmetic Dermatology. 2022. doi:10.1111/jocd.15348
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