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DrPlus Skin Education · Pico & Laser

Pico Laser Treatment: A Doctor's Complete Guide

Pico laser is one of the most searched skin treatments — and one of the most misunderstood. Start here for a clear, doctor-led overview.

8 min readUpdated Jun 2026
Modern picosecond pico laser handpiece on a clean surface in a bright aesthetic clinic

What is pico laser?

Pico laser treatment uses a family of laser devices that deliver energy in pulses measured in picoseconds — trillionths of a second. The picosecond pulse is so short that it acts mainly through a photoacoustic effect: it shatters pigment into tiny fragments with relatively little heat deposited in the surrounding skin.

You will also see the terms picosecond laser, pico treatment, pico pulse and pico fractional. These describe the same underlying technology used in different modes — for example, a fractional lens can be added to focus energy for texture and scar work rather than flat pigment clearance.

— Mechanism

Ultra-short pulses shatter pigment, not skin

Before

Excess pigment sits in clumps that are too large for the body to clear on its own.

After pico pulses

A photoacoustic pressure wave breaks the pigment into dust-fine particles your immune system gradually flushes away.

Because pico pulses are measured in trillionths of a second, they rely more on this shattering effect than on heat — which helps lower the pigmentation risk that older heat-based lasers carry in deeper skin tones.

How pico laser works

The goal is to break pigment into fragments small enough for your body to clear naturally over the following weeks. Because the pulse is ultra-short, less heat spreads into nearby tissue compared with older laser generations.

Mechanism

Ultra-short pulse

Energy is delivered in picoseconds, limiting how much heat builds up in the skin.

Mechanism

Photoacoustic shattering

An acoustic shock fragments pigment particles into smaller pieces.

Mechanism

Natural clearance

Your lymphatic and immune system gradually clears the fragments over weeks.

What pico laser is commonly used for

Pico laser is most often discussed for sun-related pigmentation (sun spots, solar lentigines), some cases of melasma under a cautious protocol, post-inflammatory pigmentation, and general tone refinement. Fractional pico modes may also support texture and certain scar work.

It is not a universal fix. The right tool depends on what the pigment is, how deep it sits, your skin tone, and any hormonal factors — which is why a diagnosis matters before any laser is chosen.

What a course of treatment involves

Pigment work is usually planned as a series of sessions spaced several weeks apart, not a one-off. Sessions are typically short, and many people return to normal activities quickly, though this varies with the settings used.

— Pathway

A typical pico laser journey

  1. 01

    Consultation

    A doctor confirms pigment type, depth, skin tone and suitability.

  2. 02

    Foundations

    Daily sun protection and supportive skincare set up before treatment.

  3. 03

    Sessions

    A planned series, with settings adjusted to your skin's response.

  4. 04

    Review

    Progress is checked and the plan adjusted as needed.

  5. 05

    Maintenance

    Periodic touch-ups and sun discipline protect the result.

Is pico laser right for you?

The honest answer depends on assessment. Pico can be an excellent tool for the right concern and the wrong choice for another. The best way to know is a doctor-led consultation that looks at your skin specifically.

— Frequently asked

Common questions

Pico laser treatment uses a laser that fires in picoseconds (trillionths of a second) to fragment pigment in the skin so the body can clear it. It is commonly used for sun spots, uneven tone and some pigmentation concerns. Suitability is confirmed by a doctor after assessing your skin.

Yes. 'Pico laser' is the everyday name for a picosecond laser — both refer to the same ultra-short-pulse technology. 'Pico pulse' and 'pico fractional' describe specific modes of the same family of devices.

Most people describe a light snapping sensation. Numbing cream can be used for more sensitive areas. Your doctor will explain comfort options before your session.

Pigment work is usually a series of sessions spaced several weeks apart. The number depends on the pigment type, depth and how your skin responds — your doctor will give a realistic estimate at consultation. Results vary by individual.

Pico fractional uses a special lens to focus the picosecond energy into tiny zones, which can support texture and certain scar work in addition to pigment. Whether a fractional mode suits you depends on your concern and skin type.

No. It tends to suit sun-related pigmentation well, can help some melasma with a cautious protocol, and is not the right tool for every pigment pattern. Correct diagnosis before treatment is what makes the difference.

— Related treatments

Each page goes deeper into mechanism, suitability and recovery — your final plan is confirmed at consultation.

— Continue reading