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Melasma · Laser Toning · Tranexamic Acid · Topicals · Comparison

Melasma: Laser vs Tranexamic Acid vs Skincare

Three levers on a chronic condition.

Melasma is a chronic pigment condition driven by light, heat and hormones. Dr Sin Yong at IN Eternity Clinic on Orchard Road compares the three main approaches and explains why the strongest results usually come from combining them carefully.

WhatsApp to Enquire →Key facts ↓
Chronic
Managed, not cured
Prescription
Oral tranexamic acid
Low fluence
Laser settings
Daily
Sun and light protection
Assessed and treated by Dr Sin Yong, Medical Director · MBBS (NUS) · MRCS (Edinburgh) · MSc Aesthetic Medicine (London) · MSc Practical Dermatology (Cardiff) · Designated DEKA Centre of Excellence

Skincare, meaning sun and visible-light protection plus topical lighteners, is the foundation of melasma care. Oral tranexamic acid, a prescription medicine, reduces pigment signalling from within and suits selected people after screening. Laser toning breaks up pigment gradually but can worsen melasma if overdone. Plans that hold up over time usually combine all three.

Key facts
  • What melasma is: symmetrical brown or grey-brown patches, usually on the cheeks, forehead and upper lip, driven by overactive pigment cells.
  • Drivers: ultraviolet and visible light, heat, hormones including pregnancy and oral contraceptives, genetics, and changes in the blood vessels and support cells of the skin.
  • Skincare role: broad-spectrum, ideally tinted sunscreen, plus topical lighteners such as azelaic acid, niacinamide or prescription hydroquinone-based regimens.
  • Tranexamic acid: an oral prescription medicine that interferes with plasmin-related signalling involved in pigment production; used at low dose after screening for clotting risk.
  • Laser toning: low-fluence 1064 nm Nd:YAG passed over the skin to fragment pigment gradually with minimal heat.
  • Main laser risk: over-treatment can cause rebound darkening or mottled light spots, so settings and intervals are conservative.
  • Relapse: melasma commonly returns with sun, heat or hormonal change, so maintenance is part of every plan.
  • Diagnosis first: Hori’s macules and post-inflammatory pigmentation can mimic melasma and need different treatment.
Reviewed by Dr Sin Yong, Medical Director, IN Eternity Clinic · Last updated
The condition

Why melasma behaves differently

Melasma is not simply a collection of sun spots. Its pigment cells are overactive and respond strongly to ultraviolet and visible light, heat and hormones. Research has also shown changes in the blood vessels and supporting cells of affected skin, which help explain why melasma is persistent and why aggressive treatment can make it worse.

It is common in Asian women, often starting in the twenties to forties, and frequently linked to pregnancy or hormonal contraception. Because it is chronic, the aim is control: lightening the patches and keeping them light, rather than a one-off cure. That framing shapes how each treatment below is used.

Woman applying sunscreen by a softly lit window
Illustrative image. Not a patient of IN Eternity Clinic.
Lever one

Skincare: the foundation

Light protection. Ultraviolet protection alone is not enough for many people with melasma; visible light also stimulates pigment in darker skin. Tinted sunscreens containing iron oxides add visible-light protection. Generous application, reapplication and a hat matter as much as the product.

Topical lighteners. Options include azelaic acid, niacinamide, tranexamic acid serums, cysteamine and other ingredients that reduce pigment production. Hydroquinone, often in combination with a retinoid and a mild steroid, is effective but is a prescription medicine in Singapore and is used for limited periods under supervision. Retinoids such as tretinoin are also prescription medicines. Gentle cleansing and avoiding irritation protect the result.

Skincare alone can control mild melasma. For moderate or stubborn melasma it is necessary but often not sufficient.

“With melasma the goal is control, not a cure. The patients who do well are the ones who protect the result, not the ones who chase it hardest.”
— Dr Sin Yong, Medical Director, IN Eternity Clinic
Lever two

Oral tranexamic acid

Tranexamic acid is a prescription medicine traditionally used to reduce bleeding. At low doses, it has been found to lighten melasma, probably by interfering with plasmin-related signals that stimulate pigment cells and by affecting the vascular component of the condition. Reviews of clinical studies report improvement in many patients, often within a few months.

It is not for everyone. Because it acts on the clotting system, people with a history of blood clots, stroke, certain heart conditions, or who are pregnant are not suitable, and those using oestrogen-containing contraception or who smoke need careful assessment. A doctor takes a full history before prescribing, sets a limited course, and reviews you during it. Melasma can return after stopping, so it is usually combined with skincare and planned maintenance.

Sunscreen tube, straw hat and sunglasses on linen
Illustrative image. Not a patient of IN Eternity Clinic.
Lever three

Laser toning

Low-fluence 1064 nm Nd:YAG toning passes gentle energy over the skin many times to fragment pigment without destroying pigment cells, with minimal heat. A histology study of melasma treated this way found reduced melanin in the treated skin. At IN Eternity Clinic, toning is performed on the DEKA TORO.

The risk lies in doing too much. High energy, too many passes or sessions too close together can cause rebound darkening or persistent pale spots that are difficult to correct. Settings are conservative, intervals are spaced, and the plan is adjusted at each visit. Laser alone tends to relapse quickly; with skincare and, where suitable, oral medicine, results are more stable.

Side by side

Laser vs tranexamic acid vs skincare at a glance

SkincareOral tranexamic acidLaser toning
RoleFoundation and maintenanceReduces pigment signallingFragments existing pigment
Who prescribes or performsSelf, with doctor guidanceDoctor, after screeningDoctor
Main riskIrritationClotting risk in unsuitable peopleRebound or mottled lightening
Relapse when stoppedYesCommonCommon

Response varies widely between people. Plans are set and reviewed at consultation.

Which suits whom

Building a plan

Mild, recent melasma: rigorous light protection and topical care, reviewed after about three months. Moderate melasma, or melasma not responding to skincare: add oral tranexamic acid if you are suitable after screening, and consider conservative toning. Stubborn or mixed pigment: clarify the diagnosis first, because Hori’s macules or post-inflammatory marks within the same area need different lasers. Pregnant or planning pregnancy: light protection and gentle, pregnancy-appropriate topicals only, with other treatment deferred.

Whatever the combination, the order matters: calm the pigment cells with skincare and protection first, add medicine if suitable, and use laser conservatively once the skin is prepared.

Mimics

When it is not only melasma

Several conditions look like melasma and are often treated as if they were. Hori’s macules are speckled grey-brown patches on the cheeks that sit in the dermis and need pigment-laser sessions rather than toning alone. Post-inflammatory pigmentation follows acne, eczema or irritation, and fades with calming care. Sun spots are discrete and respond well to targeted pico or Q-switched treatment. Contact reactions to fragrances or hair dyes can cause pigmentation along the hairline or jaw.

Mixed pictures are common, and the treatment for one component can aggravate another: a laser setting that clears a sun spot may inflame melasma next to it. Mapping what is where, before anything is treated, prevents that. At IN Eternity Clinic, Dr Sin Yong examines the skin under magnification and photographs it in standard lighting, so changes can be compared fairly from visit to visit.

Everyday triggers

Small habits that matter in Singapore

Heat is an underappreciated melasma trigger. Cooking over a stove, hot yoga, saunas and long periods outdoors at midday can all darken patches, even with sunscreen. Practical changes help: exercising in cooler hours or indoors, a cooling mist after heat exposure, and a hat in addition to sunscreen. Fragranced skincare and harsh exfoliants can irritate and add post-inflammatory pigment. Reviewing hormonal contraception with your own doctor is sometimes worthwhile when melasma is severe.

Keeping it light

Maintenance and realistic expectations

Melasma tends to darken in sunny months, after holidays, with heat and with hormonal change. Maintenance usually means continuing light protection and a simpler topical routine indefinitely, with occasional toning sessions or short courses of medicine when needed. Tracking with photographs taken in the same light helps you and your doctor see real change rather than daily variation.

Good control is achievable for many people. Being clear that melasma is managed, not cured, avoids the cycle of aggressive treatment, rebound and frustration.

Myths and facts

Common myths, answered

Questions

Frequently asked questions

Is laser or tranexamic acid better for melasma?

They work differently. Laser toning fragments existing pigment; oral tranexamic acid, a prescription medicine, reduces the signals that drive pigment production. Many people do well with a combination, built on daily light protection and topical care. Suitability for tranexamic acid depends on screening for clotting risk.

Is oral tranexamic acid safe?

At low doses it is generally well tolerated in suitable patients, but because it acts on the clotting system it is not appropriate for people with a history of blood clots, stroke, certain heart conditions, or pregnancy. A doctor screens you before prescribing and reviews you during the course.

Can laser make melasma worse?

Yes, if settings are too aggressive or sessions too frequent, laser can cause rebound darkening or pale, mottled spots. That is why toning for melasma uses low energy, spaced sessions and careful review, alongside skincare and light protection. If darkening appears, the plan is paused or adjusted rather than pushed harder.

Which skincare ingredients help melasma?

Useful ingredients include azelaic acid, niacinamide, tranexamic acid serums and cysteamine, along with prescription regimens such as hydroquinone with a retinoid, used for limited periods under supervision. A tinted broad-spectrum sunscreen containing iron oxides is the most important product of all.

Can melasma be treated during pregnancy?

During pregnancy, treatment is limited to light protection and gentle, pregnancy-appropriate topical care. Oral tranexamic acid, hydroquinone, retinoids and lasers are usually deferred. Melasma that appears in pregnancy sometimes fades afterwards, and a plan can be made after delivery and breastfeeding.

How much does melasma treatment cost?

It depends on the combination needed: prescription topicals, oral medicine, the number of laser sessions and the length of maintenance. A written estimate is given after assessment so you can see what the first phase and maintenance involve, and the plan is reviewed as your skin responds rather than fixed for a long course.

Will my melasma come back?

It commonly does if triggers return, especially sun, heat and hormonal change. Ongoing light protection, a maintenance routine and occasional sessions keep it under better control. Reviews help adjust the plan before relapse becomes established, and many people find a short seasonal top-up easier than restarting treatment from scratch.

Related at IN Eternity Clinic
Melasma treatmentMelasma: the conditionLaser toningMelasma guidePregnancy and breastfeeding safety

Book an assessment

IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, Singapore 228210. By appointment with Medical Director Dr Sin Yong. Monday to Saturday, 11am to 8pm. WhatsApp or call +65 8815 3008.

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Dr Sin Yong
MBBS (NUS) · MRCS (Edinburgh) · MSc Aesthetic Medicine (London) · MSc Practical Dermatology (Cardiff)
International KOL — CLASSYS · HIRONIC · DEKA · ALMA · FOTONA · LUTRONIC
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References

  1. Sheth VM, Pandya AG. Melasma: a comprehensive update: part I. J Am Acad Dermatol 2011;65(4):689-697. doi:10.1016/j.jaad.2010.12.046
  2. Sheth VM, Pandya AG. Melasma: a comprehensive update: part II. J Am Acad Dermatol 2011;65(4):699-714. doi:10.1016/j.jaad.2011.06.001
  3. Taraz M, Niknam S, Ehsani AH. Tranexamic acid in treatment of melasma: A comprehensive review of clinical studies. Dermatol Ther 2017;30(3):e12465. doi:10.1111/dth.12465
  4. Wattanakrai P, Mornchan R, Eimpunth S. Low-fluence Q-switched neodymium-doped yttrium aluminum garnet (1,064 nm) laser for the treatment of facial melasma in Asians. Dermatol Surg 2010;36(1):76-87. doi:10.1111/j.1524-4725.2009.01383.x
  5. Kim JE, Chang SE, Yeo UC, Haw S, Kim IH. Histopathological study of the treatment of melasma lesions using a low-fluence Q-switched 1064-nm neodymium:yttrium-aluminium-garnet laser. Clin Exp Dermatol 2013;38(2):167-171. doi:10.1111/j.1365-2230.2012.04473.x

These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.

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