PicoSure for Glass Skin in Korea: Why Aya Called It Her Most Impressive Laser Yet — Her Doctor Explains

Patients who have already had several lasers back home are, in a way, the hardest to impress — and the most useful to listen to. I'm Dr. Hyunji Kim, director of Delphic Clinic beside Sinnonhyeon Station in Gangnam. I trained at Korea University Medical Center and treat international patients myself, including visitors from the Middle East. Aya wrote that among all her laser sessions, this one gave the result that amazed her most. On this page I explain what is different about PicoSure, what it costs, and who should pick another laser.

Medically reviewed · Dr. Hyunji Kim · October 8, 2026

When someone who's had many lasers says “this one”

Aya didn't come to laser for the first time. That matters, because experienced patients compare. When they notice a difference, it's usually down to two things: the type of laser and how carefully the settings fit their skin.

Glass skin is not one treatment. It is even tone, fewer visible spots and a smooth surface that reflects light. PicoSure handles the tone part well, which is often what people notice first.

What “picosecond” changes

• PicoSure is an FDA-cleared 755nm laser that fires in picoseconds, much shorter pulses than conventional nanosecond toning lasers.
• Shorter pulses break melanin into finer particles while sparing the surrounding tissue, with less heat spreading into the skin.
• Spot sizes from 2–6mm up to 10mm let me treat small spots and broad dullness differently in the same session.
• Because it targets pigment selectively, it causes less unnecessary stimulation of blood vessels.

I've written a fuller explanation of how I fade stubborn pigment with PicoSure, and a separate guide on what a clinic does for Korean glass skin beyond one laser.

A note for medium and olive skin tones

Medium and olive skin often tans easily and can hold onto marks longer. That skin can respond well to toning, but it also reacts more strongly to heat. I start conservatively and adjust, rather than chasing a dramatic first session.

If you've ever had darkening after a laser, tell me at consultation. It changes the settings I choose and how often I'd suggest repeating.

In the chair and afterwards

Most people describe quick snaps on the skin, like a rubber band, with warmth that fades quickly. A soothing mask follows. You can go out straight afterwards.

Mild redness or fine flaking can appear for a few days. The laser's heat can leave skin dehydrated, so use plenty of moisturiser and sunscreen, and avoid retinol, whitening products and peels for a few days.

What PicoSure costs at Delphic

Our prices are published, and international visitors pay exactly what Korean patients pay. The first-visit PicoSure line is:

Stronger single-session options like Zoom Pass cost more. My PicoSure cost guide explains when the extra is worth it.

One session or a series?

One session can make skin look brighter and more even, which is often what people notice and film. Deeper or older pigment usually needs repeat sessions every 1–2 weeks. If you're only in Seoul once, I'll tell you what one session can realistically do.

Planning a PicoSure visit

1. 1

   Before you travel

   Message us on WhatsApp with a daylight photo without makeup. Mention any past laser reactions.

2. 2

   On the day

   A 1:1 consultation with me and same-day treatment if we agree. English and Chinese interpreters are on site.

3. 3

   Location

   A short walk from Exit 3 of Sinnonhyeon Station.

4. 4

   After

   Sunscreen every few hours outdoors — Seoul summers are bright. Message us with any questions.