Korean laser dermatology is among the most sophisticated in the world — driven by a patient population with high rates of post-inflammatory hyperpigmentation (PIH), melasma, and textural concerns, and a regulatory environment that drove rapid adoption of new laser technology. Pico lasers became standard in Korean dermatology clinics years before they were common in Western markets, and Korean dermatologists have correspondingly deep experience with protocol refinement.
How pico lasers work
A pico laser delivers energy in pulses measured in picoseconds (trillionths of a second). This ultra-short pulse duration shatters pigment particles via photoacoustic stress rather than purely thermal (heat) destruction. The resulting pigment fragments are smaller, clear faster, and the surrounding tissue receives less thermal damage — reducing side effects and recovery time versus older Q-switch laser technology.
Pico lasers operate at multiple wavelengths:
- 1064nm (Nd:YAG): Penetrates deeper; treats dermal pigment, melasma, tattoo removal (dark inks)
- 532nm (KTP): Targets superficial pigment, vascular lesions, red/orange tattoo inks
- 755nm (Alexandrite): PicoSure-specific; general pigmentation, tattoo removal
Pico devices used in Korean clinics
| Device | Origin | Wavelengths | Distinguishing features | Common uses |
|---|---|---|---|---|
| PicoSure (Cynosure) | USA | 755nm, 532nm | First FDA-cleared pico laser; Focus lens array for fractional skin renewal | Pigmentation, acne scars, tattoo removal |
| PicoWay (Candela) | USA | 1064nm, 532nm, 730nm | Shortest pulse width (300ps); resonator handpiece for fractional use | Melasma, acne scars, dark tattoos |
| Helios III (Lutronic) | Korea | 1064nm, 532nm | Dual-mode pico + Q-switch in same handpiece; widely used in Korea | General pigmentation, toning, tattoo |
| Picoplus (Lutronic) | Korea | 1064nm, 595nm, 660nm | Triple wavelength; vascular + pigment versatility | Redness, capillaries, pigmentation |
| Picogenesis (Wontech) | Korea | 1064nm, 532nm | Affordable; high clinical volume in Korean clinics | General toning, pigmentation, maintenance |
| PICO4 (Cutera) | USA | 532nm, 1064nm | Lower cost device; broader accessibility | Entry-level pico for toning + spot treatment |
What pico laser treats and pricing
| Concern | Sessions typically needed | KRW per session | USD (approx) | AUD (approx) |
|---|---|---|---|---|
| General skin toning / glow | 1–4 (low fluence) | ₩80,000–₩200,000 | $58–$145 | $88–$220 |
| Epidermal pigmentation (sun spots, freckles) | 2–4 | ₩100,000–₩250,000 | $72–$181 | $110–$275 |
| Melasma | 6–12 (ongoing) | ₩100,000–₩250,000 | $72–$181 | $110–$275 |
| Post-inflammatory hyperpigmentation (PIH) | 3–8 | ₩100,000–₩250,000 | $72–$181 | $110–$275 |
| Acne scar remodelling (fractional) | 4–6 | ₩200,000–₩500,000 | $145–$362 | $220–$549 |
| Pore reduction | 3–6 | ₩100,000–₩250,000 | $72–$181 | $110–$275 |
| Tattoo removal (small, per session) | 4–10 depending on colour | ₩100,000–₩400,000 | $72–$290 | $110–$440 |
| Tattoo removal (large, per session) | 6–15 depending on colour | ₩300,000–₩800,000 | $217–$580 | $330–$879 |
Melasma: managing expectations
Melasma is a chronic condition — it does not have a permanent cure. Pico laser reduces visible pigmentation, but UV exposure, hormonal changes, and inflammation can trigger recurrence. Korean dermatologists treat melasma as a maintenance condition requiring:
- Low-fluence, high-frequency pico laser (monthly or bi-monthly)
- Consistent SPF 50+ application (morning and noon)
- Often: topical tranexamic acid, niacinamide, or kojic acid
- Sometimes: oral tranexamic acid (commonly prescribed in Korea for melasma)
- Avoiding laser settings that trigger PIH in melanin-rich skin
The goal is management and improvement, not one-and-done clearance.
After laser: what Korean dermatologists prescribe
Korean clinics typically send patients home with:
- Barrier-repair cream (Vaseline or ceramide-based)
- Mineral SPF 50+ (to apply from the following morning)
- Instruction to avoid active skincare for 3–7 days
For low-fluence toning treatments, skin may appear slightly pink for a few hours and then look normal. For higher-fluence fractional pico (acne scars), expect 3–5 days of pinpoint crusting that heals to reveal new skin underneath.
What is the difference between pico laser and Q-switch laser?
Q-switch lasers deliver nanosecond pulses (billionths of a second). Pico lasers deliver picosecond pulses (trillionths of a second) — 100× shorter. The shorter pulse creates a photoacoustic (shockwave) effect in addition to the photothermal (heat) effect, breaking pigment into smaller particles that the immune system clears more easily. Pico lasers treat the same concerns as Q-switch but with less heat damage to surrounding tissue, less risk of post-inflammatory hyperpigmentation (PIH), and typically fewer sessions required.
Does pico laser treat melasma?
Pico laser is one of the tools used for melasma in Korea, but melasma is complex and no single treatment reliably clears it. Korean dermatologists typically approach melasma with a combination: low-fluence pico laser to reduce pigment depth, combined with tranexamic acid (topical or injected), sunscreen, and sometimes Sylfirm X for the vascular component. Expect improvement over multiple sessions rather than clearance.
Can you get laser and fly home the next day?
For most pico laser settings (tone, pigmentation, pore treatment), the skin is mildly pink for a few hours; flying next day is fine. For higher-fluency pico fractional treatment (acne scars), there is more surface disruption — wait 48–72 hours before flying if possible, and bring barrier cream and mineral SPF for the flight.