Pico Laser for Pigmentation & Melasma — VERZO CLINIC Bangkok

TL;DR: Pico lasers emit pulses in picoseconds (trillionths of a second) while Q-switch lasers emit in nanoseconds (billionths). The shorter pulse duration of pico lasers breaks pigment into smaller particles with less heat, resulting in faster clearance, fewer sessions, and less risk of post-inflammatory hyperpigmentation — especially important for Asian skin.

Written by Dr. Waleerat Thaweebanchongsin, licensed aesthetic medicine specialist with over 10 years of specialized experience in laser treatments and pigmentation management. VERZO CLINIC near BTS Ekkamai, Sukhumvit Road. Free consultations via LINE @verzo.

Last updated: April 2026

Frequently Asked Questions

What is the difference between Pico laser and Q-switch laser?

Pico lasers emit pulses in picoseconds (trillionths of a second) while Q-switch lasers emit in nanoseconds (billionths). The shorter pulse duration of pico lasers breaks pigment into smaller particles with less heat, resulting in faster clearance, fewer sessions, and less risk of post-inflammatory hyperpigmentation — especially important for Asian skin.

Can pico laser treat melasma effectively?

Pico laser can help manage melasma but it is not a standalone cure. Melasma is a chronic condition driven by hormones, UV exposure, and genetics. Pico laser with 1064nm MLA at low fluence helps break up melanin without triggering rebound. It works best as part of a combination protocol with topical agents and oral/IV tranexamic acid.

How many pico laser sessions do I need?

For sun spots and freckles: 1-3 sessions usually show significant improvement. For melasma: 4-8 sessions at 2-4 week intervals as part of a maintenance protocol. For pore minimizing: 3-6 sessions. The exact number depends on your skin type, pigment depth, and condition severity.

What is the recovery after pico laser?

For toning mode (1064nm): minimal downtime, slight redness for a few hours. For spot treatment (532nm zoom): dark spots darken and form micro-crusts that flake off in 5-7 days. Strict sun protection with SPF50+ is essential for 2-4 weeks post-treatment.

Is pico laser safe for dark Asian skin?

Yes, pico lasers are particularly well-suited for Fitzpatrick skin types III-V (most Asian skin types) because the ultra-short pulse duration minimizes thermal damage and reduces the risk of post-inflammatory hyperpigmentation (PIH) that Q-switch lasers can sometimes trigger.

Can pico laser minimize pores?

Yes, the Micro-Lens Array (MLA) attachment creates focused laser beams that stimulate collagen remodeling within pore walls. Over 3-6 sessions, pores tighten and appear smaller. This is often combined with pigment treatment in the same session.

What wavelengths are used in pico laser treatment?

The primary wavelengths are 1064nm (for deeper pigment and toning), 532nm (for superficial pigment like freckles and sun spots), and 660nm or 785nm (for blue/green tattoo removal). The 1064nm with MLA is most commonly used for melasma and pore treatment.

How much does pico laser cost in Bangkok?

Pico laser treatment at VERZO CLINIC ranges from 3,000-8,000 THB per session depending on the area and protocol. Package programs of 4-6 sessions offer better value. This is approximately 50-70% less than equivalent treatment in Japan, Korea, or Western countries.