Laser · Doje Clinic, Sinsa-dong
Q-Switched Nd:YAG Laser in Cheongdam, Apgujeong, Gangnam Seoul Targeted Treatment for Spots and Deep Pigment
Q-Switched Nd:YAG Laser in Gangnam, Seoul at Doje Clinic uses nanosecond pulses at 1064 nm and 532 nm to break up freckles, sun spots and deeper dermal pigment. A session takes about 10–20 minutes; treated spots form small crusts for about 7–10 days, and pigment fades over 4–8 weeks. Spot count and area set the price at consultation. Ask in English on WhatsApp.
Quick answer
What Is a Q-Switched Nd:YAG Laser?
A Q-switched Nd:YAG laser is a pigment laser that releases very high-energy pulses lasting a few nanoseconds. Melanin absorbs the energy so fast that pigment particles shatter, and the body's immune cells then clear them away.
The laser offers two wavelengths. 532 nm (green light) is absorbed near the surface and suits freckles and sun spots (solar lentigines). 1064 nm reaches deeper into the dermis and is used for dermal pigment such as Hori's nevus (ABNOM) and nevus of Ota, which usually need a longer course of sessions.
The same 1064 nm laser at low energy is the basis of Laser Toning for melasma. Spot treatment and toning are very different settings, so the doctor diagnoses your pigment first.
- Treats
- Freckles, sun spots, Hori's nevus (ABNOM), nevus of Ota and other pigment
- Performed by
- Licensed physicians at Doje Clinic
- Treatment time
- About 10–20 minutes
- Downtime
- Small dark crusts for about 7–10 days on treated spots
- Results
- Pigment fades over 4–8 weeks after each session
- Sessions
- 1–3 for surface spots; 5–10 for deeper dermal pigment
- Technology
- Q-switched Nd:YAG laser, 1064 nm and 532 nm
- Price
- Confirmed after your consultation – see all prices
Compare
Q-Switched Nd:YAG vs Picosecond Laser
Both shatter pigment with ultra-short pulses. The main difference is pulse length.
| Feature | Q-Switched Nd:YAG | Picosecond Laser |
|---|---|---|
| Pulse length | Nanoseconds | Picoseconds (about 1,000 times shorter) |
| Main effect | Photothermal and photoacoustic | Mainly photoacoustic, less heat |
| Track record | Long-established for pigment | Newer; may clear some pigment in fewer sessions |
| Downtime for spots | Crusts for about 7–10 days | Similar, often slightly milder |
Is it right for you?
Who Is the Q-Switched Nd:YAG Laser Right For?
Adults with distinct brown spots or deeper bluish-grey pigment who can protect their skin from the sun during healing.
Q-switched laser is not recommended during pregnancy or breastfeeding, on tanned skin, over active infection, or with photosensitising medicines. Post-inflammatory hyperpigmentation is common in Asian and darker skin for several weeks after spot treatment, particularly with 532 nm. Any irregular or changing mole must be assessed by a doctor and is not treated with a pigment laser.
- Freckles on the nose and cheeks
- Sun spots (solar lentigines)
- Bluish-grey patches on the cheekbones (Hori's nevus)
- Nevus of Ota (assessed by the doctor)
- Visitors staying at least a week, or returning for a series
Your visit
What to Expect During Q-Switched Laser Treatment
Send Photos
Share daylight photos of your spots and your travel dates on WhatsApp in English.
Pigment Diagnosis
The doctor identifies the pigment type and depth, chooses 532 nm or 1064 nm and confirms the price.
Spot Treatment
After cleansing and optional numbing, each spot turns briefly white (frosting). Treatment takes about 10–20 minutes.
Protective Patches
Small patches or ointment may be applied. You receive written aftercare for the crusting phase.
Results timeline
When Will I See Q-Switched Laser Results?
Surface spots respond quickly; deeper pigment needs patience.
Spots frost white, then darken. Mild redness around them.
Small dark crusts form and fall off naturally.
Lighter skin is revealed. Some temporary pinkness or darkening may appear.
Pigment continues to fade. Further sessions are planned if needed.
Why Doje Clinic
Why Choose Doje Clinic for Q-Switched Nd:YAG Laser in Seoul?
1:1 Private Care
An in-depth one-to-one consultation with the Representative Director before any treatment is planned.
Doctor-Performed
Every treatment is planned and performed by Dr. Byun Je-ik, a Seoul National University–trained surgeon.
Filler & Lifting Specialist
Named one of Korea's 22 filler experts by Medical Times; Merz advisory board and Belotero Expert committee member.
Award-Winning
Merz Golden Record Award winner – 2024 Ultherapy Transducers and 2023 Belotero.
Natural Results
Bespoke plans built around your features and aging pattern, so results look refined, never overdone.
Foreigner-Friendly
Book in English on WhatsApp or LINE, or reach us on KakaoTalk and Instagram DM.
Your doctor
Your Doctor at Doje Clinic
Treatments are planned and performed by Representative Director Dr. Byun Je-ik – a Seoul National University–trained surgeon, Merz advisory board member, Belotero Expert committee member and Merz Golden Record Award winner (2024, 2023).
Aftercare
Q-Switched Nd:YAG Laser Aftercare
The crusting phase is when aftercare matters most.
Protect the Spots
Keep patches or ointment on as instructed for the first days.
Never Pick
Let crusts drop off naturally; picking can leave marks or scars.
SPF 50, Strictly
Healing spots darken easily in the sun. Reapply sunscreen and wear a hat.
Gentle Washing
Wash around the treated spots gently with water and a mild cleanser.
No Actives
Avoid retinoids, acids and scrubs on treated areas for about a week.
Watch for PIH
If spots look darker at 2–4 weeks, message us on WhatsApp – it is usually temporary.
Location & hours
Find Us in Sinsa-dong, Gangnam
Doje Clinic Seoul
2F Dolce Vita Building, 18-6 Dosan-daero 45-gil, Gangnam-gu, Seoul, South Korea
Apgujeong Rodeo Station (Suin-Bundang Line), Exit 5 · about 6 minutes on foot · 2 hours free parking
Phone: 02-6380-2110 · WhatsApp (English): +82 10-6535-2110
| Monday | 10:00 – 19:00 |
| Tuesday | 10:00 – 19:00 |
| Wednesday | Closed |
| Thursday | 10:00 – 19:00 |
| Friday | 10:00 – 19:00 |
| Saturday | 10:00 – 17:00 |
| Sunday & public holidays | Closed |
| Weekday lunch break | 13:00 – 14:00 |
FAQ
Q-Switched Nd:YAG Laser in Seoul – Frequently Asked Questions
How much is Q-switched Nd:YAG laser in Gangnam, Seoul?
At Doje Clinic, the cost of Q-Switched Nd:YAG Laser depends on the areas treated and the bespoke plan designed at your 1:1 consultation with Dr. Byun Je-ik, so prices are confirmed after the doctor's assessment. Message us on WhatsApp for an initial guide.
What does a Q-switched Nd:YAG laser treat?
A Q-switched Nd:YAG laser treats freckles, sun spots and deeper dermal pigment such as Hori's nevus and nevus of Ota. At low energy it is also used for laser toning of melasma.
Does Q-switched laser hurt?
Q-switched laser feels like a sharp snap, similar to a rubber band. Numbing cream can be applied first for comfort.
How many sessions do I need?
Freckles and sun spots often need 1–3 Q-switched laser sessions. Deeper pigment such as Hori's nevus usually needs 5–10 sessions spaced several weeks apart.
Can Q-switched laser make spots darker?
Temporary darkening called post-inflammatory hyperpigmentation can appear a few weeks after treatment, especially in Asian or darker skin. It usually fades over weeks to months with sun protection.
Q-switched vs pico laser – which is better?
Both are effective for pigment. Picosecond lasers use shorter pulses with less heat and may need fewer sessions for some pigment, while Q-switched Nd:YAG has a longer track record. The doctor in Gangnam recommends one based on your pigment type.
Related treatments
Medically reviewed by the physicians of Doje Clinic (Representative Director: Dr. Byun Je-ik). Prices are listed event prices in KRW and are confirmed after a doctor's consultation. Individual results may vary. Last updated: October 2026.
