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Pigmentation and melasma: what works, what doesn't

Sun spots, freckles, post-inflammatory marks and melasma look alike and behave differently. Lentigines usually clear with a well-chosen laser; melasma is a chronic, relapsing condition driven by hormones, heat and light, and the treatments that work are the ones that respect that.

About 600 searches a month in Singapore for “pigmentation treatment singapore” (Ahrefs, October 2026). 16 treatments reviewed for this concern.

What works for pigmentation and melasma?

For lentigines and freckles, Q-switched and picosecond lasers have a long track record. For melasma, the evidence favours a maintenance approach: strict broad-spectrum sun protection, topical tranexamic acid, azelaic acid, retinoids and prescription lightening agents, with oral tranexamic acid under medical supervision in resistant cases; low-fluence laser toning adds modest benefit and carries a rebound and mottling risk when overused. Peels and picosecond lasers help selected cases. Supplements marketed as whitening pills have weak evidence.

Reviewed
1 October 2026 by Aesthetics International. Verdicts are editorial and unpaid.

By the numbers

  1. systematic review

    Pooled trials showed 1064 nm picosecond treatment reduced melasma scores, while 755 nm was not superior to topical agents and was associated with post-inflammatory hyperpigmentation.

    From the Pico laser review — Efficacy and safety of picosecond laser for the treatment of melasma: a systematic review and meta-analysis., Lasers Med Sci, 2023. PMID 36897459.

  2. systematic review

    Twenty-one studies including 11 randomised trials support Polypodium as an adjunct in photoageing, photodermatoses and melasma with a good safety profile.

    From the 'Oral sunscreen': Polypodium and astaxanthin review — The Utility of Oral Polypodium Leucotomos Extract for Dermatologic Diseases: A Systematic Review., Journal of Drugs in Dermatology, 2025. PMID 40196953.

  3. systematic review

    Low-fluence 1064 nm picosecond treatment reduced melasma scores in pooled trials, while 755 nm offered no advantage over topical agents and caused post-inflammatory darkening.

    From the Laser toning for melasma review — Efficacy and safety of picosecond laser for the treatment of melasma: a systematic review and meta-analysis., Lasers Med Sci, 2023. PMID 36897459.

Three figures from the studies cited across this concern's reviews, chosen for study quality rather than for agreement with the verdicts.

“For lentigines and freckles, Q-switched and picosecond lasers have a long track record.”
Aesthetics International · Pigmentation and melasma

Every treatment reviewed for pigmentation and melasma

Ordered by verdict, then by how often people search for each. Open any review for the studies, what people are saying and who it suits.

Vetted protocols for pigmentation and melasma

Protocols that pass the Aesthetics International standard and address this concern. A protocol is a plane, a sequence and a set of endpoints — not a device.

Questions

Can melasma be cured?
No. Melasma is managed, not cured: it responds to sun protection and topical therapy and recurs when they stop. Any clinic promising permanent clearance is overstating what the literature supports.
Is pico laser good for melasma?
Picosecond lasers at low fluence can lighten melasma over a series, and are better supported for sun spots and post-inflammatory marks. In melasma they work alongside topical therapy, not instead of it, and aggressive settings can worsen it.
What is the first-line treatment for pigmentation?
Identify the type first. Sun spots: laser. Post-inflammatory marks: topicals and time, with laser if persistent. Melasma: sunscreen, tranexamic acid and a retinoid-based regimen before any device.
Do whitening pills or glutathione drips work?
Oral glutathione has weak, short-lived evidence and intravenous glutathione for skin lightening is not approved for that use; HSA has advised against it. They are not a treatment for melasma.

Have a question about pigmentation and melasma?

Ask us — or ask to be matched with a practitioner in Singapore who follows evidence-based treatment. What suits you is decided at an in-person assessment, not by a page.

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