Q-Switched Laser in Seoul

Q-Switched Laser explained

Q-switched lasers are pigment lasers that produce pulses lasting billionths of a second. Common types are Nd:YAG (1064nm and 532nm), ruby and alexandrite. They are used for freckles, sun spots, nevus of Ota, tattoos and, at low energy, laser toning.

How Q-Switched Laser works

The laser light is absorbed by melanin or tattoo ink, and the very short pulse heats it so quickly that the particles shatter. Immune cells then clear the fragments over weeks. The 532nm wavelength targets surface pigment, while 1064nm reaches deeper pigment in the dermis and is safer for darker skin.

Who Q-Switched Laser is for

Freckles and sun spots (lentigines)
Nevus of Ota and Hori's nevus
Dark tattoo ink
Low-energy toning for dull skin
People who want a well-established, widely available laser

Who should avoid Q-Switched Laser

Pregnant people
Active melasma flares, unless used carefully as gentle toning
Recent tanning or sunburn
Spots that have not been checked by a doctor and may be skin cancer
Those prone to keloids, for higher-energy treatments

What happens at the appointment

Consultation to identify the pigment type and choose the wavelength
Cleansing and, for spot removal, numbing cream
Laser pulses over each spot or across the face for toning
Cooling and soothing cream
Healing patches over treated spots if needed, plus sunscreen

Aftercare and flying home

Keep hydrocolloid patches on treated spots as the clinic advises
Let scabs fall off by themselves after 7–10 days
Use SPF 50 sunscreen daily for at least 2–3 months
Avoid scrubs, acids and retinoids on treated areas for a week
Return for the next session only after full healing

Side effects and risks

Redness, swelling or pinpoint bleeding on treated spots
Scabs or crusts for 7–10 days
Temporary darkening (post-inflammatory hyperpigmentation), especially in darker skin
Lightening of the skin (hypopigmentation), especially after repeated toning
Rarely, blistering or scarring

How much does Q-Switched Laser cost in Seoul?

₩50,000–₩300,000 (about US$40–220) — Prices in Seoul depend on whether the laser is used for toning, a few spots, a full face of freckles, deep pigment or a tattoo. Spot removal may be priced per spot or per area, and toning is often sold in packages. All prices are estimates and vary with promotions.

Why get Q-Switched Laser in Korea?

Q-switched lasers have been used in Korean dermatology for many years, especially for pigment conditions common in Asian skin. Treatment is widely available and usually inexpensive compared with Western cities.

Frequently asked questions

How much does Q-switched laser cost in Seoul?

Q-switched laser in Seoul usually costs about ₩50,000–₩300,000 per session (roughly US$40–220), depending on whether it is toning, spot removal or tattoo removal.

Does Q-switched laser hurt?

It feels like a rubber band snapping on the skin. Numbing cream is used for spot or tattoo treatment, while toning is usually comfortable without it.

How many Q-switched sessions do I need?

Light freckles and sun spots may clear in 1–2 sessions. Deep pigment like nevus of Ota or tattoos usually needs 5–10 or more sessions.

What is the downtime, and can I fly after it?

Toning has no downtime. After spot removal you may have small scabs for 7–10 days; flying is fine, but keep patches on and protect the area from sun.

Is Q-switched laser safe?

It is a well-established laser. The main risks are temporary darkening or lightening of the skin, so correct settings and sun protection matter.

What is the difference between Q-switched and pico laser?

Q-switched pulses are in nanoseconds, while pico pulses are about 1,000 times shorter. Pico may clear some pigment and ink in fewer sessions with less heat, but Q-switched is often cheaper.