Pico Laser for Melasma: Does It Work and What to Expect

Pico laser is one of the most popular treatments people ask about for melasma. It can lighten melasma in some people, but it does not cure it, and it carries a risk of making melasma worse if used too aggressively. In other words, pico laser can be helpful, but only as one part of a doctor-led plan. This guide explains how pico laser works on melasma, what the research shows, how many sessions you may need and what to expect afterwards. If you would like a doctor to check whether pico laser suits your melasma, contact CLEO Clinic.

What Is Melasma?

Melasma is a common pigmentation condition that causes brown or grey-brown patches, usually on both cheeks, the forehead, the nose bridge or the upper lip. In addition, it is triggered by sun, heat, visible light and hormones, and it is more common in women with medium to deeper skin tones. Importantly, melasma is a long-term condition that tends to return. For a full explanation of causes and treatment options, read our melasma guide. If you are unsure whether your patches are melasma or another type of pigmentation, our guide on melasma vs freckles vs sun spots can help.

How Does Pico Laser Work on Melasma?

Pico laser delivers extremely short pulses of energy, measured in trillionths of a second. Next, these pulses break pigment into tiny fragments, which the body then clears gradually. Because the pulses are so short, less heat spreads to the surrounding skin compared with older lasers. In fact, this matters for melasma, since heat and inflammation can trigger more pigment.

For melasma, doctors usually use low-energy settings spread over a wider area, often called laser toning. In addition, the longer 1064 nm wavelength is commonly chosen, because it is less absorbed by surface melanin and is generally gentler on Asian skin. For a broader explanation of how pico laser handles difficult pigmentation, see how pico laser treats stubborn pigmentation safely.

Does Pico Laser Work for Melasma? What the Research Shows

In short, research suggests pico laser can lighten melasma, although results vary. In a 2023 randomised, assessor-blinded trial in Frontiers in Medicine, 59 women with Fitzpatrick skin types III and IV received either 1064 nm pico laser, 755 nm pico laser or 2% hydroquinone cream (Liang et al., 2023). At 24 weeks, the 1064 nm pico laser group improved by about 36% on the melasma severity score. By comparison, the 755 nm pico group improved by about 26%, and the hydroquinone group by about 24%. However, the study was small and had no sunscreen-only control group, so it does not show how much of the benefit came from the laser itself.

Similarly, the international Delphi consensus on melasma management supports a combined, long-term approach rather than laser alone. In practice, this means pico laser is used alongside sun protection and prescribed treatment, not as a stand-alone cure.

Who Is a Good Candidate for Pico Laser for Melasma?

Pico laser may suit people whose melasma has not improved enough with strict sun protection and prescribed skincare. Usually, it works better for melasma that sits closer to the surface of the skin than for deeper or mixed types. Therefore, a doctor examines your skin to judge this before recommending laser.

On the other hand, pico laser is usually postponed during pregnancy, when melasma is often active and may improve on its own after delivery. Similarly, it is avoided in recently tanned skin, active skin infection or irritation, and in people who recently took isotretinoin. For a fuller list, see signs pico laser might not suit you.

How Many Pico Laser Sessions Do You Need for Melasma?

Melasma usually needs more sessions than freckles or sun spots. On our pico laser treatment in Kuala Lumpur page, we note that melasma typically needs four to six sessions or more. In addition, sessions are spaced several weeks apart so the skin can settle in between. Then, after the initial course, maintenance sessions may be planned to keep patches under control. For general session schedules, read how many pico laser sessions you need.

What to Expect During and After Treatment

First, numbing cream may be applied before treatment, and protective eye shields are used throughout. During the session, most people feel a mild snapping or tingling. Afterwards, mild redness is common and usually settles within a few hours to a couple of days. Unlike treatment of individual sun spots, melasma toning usually causes little or no crusting. Finally, improvement builds gradually over several sessions rather than all at once.

Can Pico Laser Make Melasma Worse?

Yes, it can. If settings are too strong or sessions are too frequent, the inflammation can trigger rebound pigmentation, where melasma returns darker or more widespread. In addition, repeated, frequent high-intensity toning has been linked to white or blotchy patches in some people. For this reason, doctors use conservative settings, space sessions carefully and stop or adjust treatment if the skin reacts. In the 2023 trial above, PIH occurred in about 5% of each laser group and resolved within one to six months. Our guide to pico laser side effects explains how to tell normal darkening from a problem and what to do.

Will Melasma Come Back After Pico Laser?

Melasma often returns, especially with sun exposure, heat or hormonal changes. Therefore, maintenance is a normal part of treatment rather than a sign that it has failed. In the 2023 trial, a small number of patients had recurrence during follow-up, and the authors described recurrence as an ongoing challenge in melasma. Consequently, a long-term plan is more realistic than expecting permanent removal.

Combining Pico Laser with Other Melasma Treatments

Daily Sun Protection

Sun protection is the foundation of every melasma plan. In practice, use a broad-spectrum sunscreen with SPF 50 every day, and choose a tinted sunscreen with iron oxides to help block visible light. The American Academy of Dermatology explains how to read sunscreen labels.

Prescribed Skincare

In addition, prescribed creams can calm pigment cells and support laser results. For example, a doctor may prescribe hydroquinone under medical supervision or tretinoin, depending on your skin.

Oral Tranexamic Acid

For stubborn melasma, oral tranexamic acid may be prescribed after a medical assessment. Our guide to tranexamic acid for melasma explains how it works and who should avoid it.

Other In-Clinic Treatments

Gentle peels and other treatments may also be combined with pico laser, as explained in our guide to pico laser with other treatments. However, some light-based treatments, such as IPL, can worsen melasma in some people, so they are chosen with care. To understand how different lasers compare, read pico vs Q-switched vs CO2 laser.

Aftercare After Pico Laser for Melasma

After treatment, strict sun protection is essential, because UV and heat can quickly undo progress. Also, avoid saunas, hot yoga, intense exercise and scrubbing for a few days, and pause strong actives until your doctor advises. For a detailed checklist, read what to avoid after pico laser.

Melasma During Pregnancy

Melasma often appears or worsens during pregnancy. During this time, pico laser and most prescription treatments for melasma are postponed. Instead, strict sun protection and gentle skincare are the safest options. For Malay-language guidance on safe skincare in pregnancy, read skincare untuk ibu mengandung (Bahasa Malaysia).

Frequently Asked Questions

Can pico laser remove melasma permanently?

No. Pico laser can lighten melasma, but it cannot cure it. Melasma often returns, so sun protection and maintenance are needed.

How long until I see results from pico laser for melasma?

Usually, improvement becomes noticeable gradually after several sessions. Results vary between individuals.

Is pico laser better than hydroquinone for melasma?

In the 2023 trial, 1064 nm pico laser gave a larger improvement than 2% hydroquinone cream at 24 weeks. Nevertheless, the study was small, and doctors often combine laser with prescribed skincare rather than choosing one over the other.

Is there downtime after pico laser for melasma?

Downtime is usually minimal. However, mild redness is common and typically settles within a few hours to a couple of days.

Is jeragat the same as melasma?

In Malay, “jeragat” is often used for several types of facial pigmentation, including melasma, freckles and sun spots. Our guide to jeragat: punca dan cara hilangkan (Bahasa Malaysia) explains the differences.

Book a Melasma Consultation

Pico laser can be a useful part of melasma treatment when it is planned carefully and combined with sun protection and prescribed care. For an overview of all our pigmentation options, see pigmentation and melasma treatment in Kuala Lumpur. To find out whether pico laser suits your melasma, book a consultation with CLEO Clinic.