Pigmentation removal in Singapore: the short answer
Pigmentation treatment and removal in Singapore start with naming the pigment: sun spots, freckles, melasma, post-inflammatory marks and Hori’s naevus each need a different laser or cream. Dr Sin Yong diagnoses under the lamp first, then plans the laser, energy and spacing for Asian skin, and says plainly when laser is not the right first step.
Pigmentation removal in Singapore is a question of matching the laser to the pigment. Sun spots and freckles are fragmented by picosecond or nanosecond pulses; tone driven by inflammation is approached with long-pulsed energy; a raised brown lesion is removed physically. Melasma is managed rather than removed. Dr Sin Yong identifies the pigment first, then chooses the wavelength for the skin type.
Laser for pigmentation in Singapore: which wavelength for which pigment
Pigmentation removal suits pigment that has been identified first. Dr Sin Yong names the pigment before he chooses the instrument. Melanin at the surface, melanin in the dermis, melanin being produced by inflamed skin and a thick plaque of keratin that happens to be brown are four different problems. A laser works by being absorbed by a target, and for brown pigment the target is melanin; this principle, selective photothermolysis, was first shown in a 1983 experimental study in Science. The table sets out which instrument is used for which at his practice.
Illustrative image — not a patient.
Which instrument is used for which pigment, and why
Pigment
Where it sits
What is used here
Why
Sun spots (solar lentigines) and freckles
Upper skin (epidermis)
T2 Frax Radiance on the DEKA TORO: 785 nm picosecond; 532 nm nanosecond for the most superficial spots
Short pulses fragment pigment mainly by a pressure effect, with less heat spreading into surrounding skin
CO2 laser, radiofrequency or shave removal after examination
Fragmenting pigment does nothing to a keratin plaque; it is lifted off physically
Pigmented mole
Melanocytic naevus
Dermatoscope first; CO2 laser, radiofrequency or shave for benign-pattern moles, excision for histology if atypical
A mole is a diagnosis before it is a blemish; see mole removal
Two protocols cover most of the pigment work. R2 Glow is directed at the inflammation that keeps producing pigment; T2 Frax Radiance is directed at the deposit, with a thermal pass for texture. Run together they are R2T2, and which one leads depends on whether the problem is a spot or a driver.
Laser pigmentation removal for darker skin: the PIH risk by skin tone
Most patients in Singapore are Fitzpatrick skin types III to V, which means medium to brown skin. That matters more for pigmentation removal than for almost any other laser treatment. The same melanin that makes a sun spot visible is also spread through the surrounding outer layer of skin, the epidermis. There it absorbs stray energy. Heat that spreads into that skin causes inflammation, and in these skin types inflammation produces more pigment. The darkening that follows an over-treated laser visit is post-inflammatory hyperpigmentation (PIH). It is the main cosmetic risk of pigmentation removal in this region.
Illustrative image — not a patient.
Picosecond delivery helps because each pulse is so short that the pigment particle cannot pass much heat to the skin around it. The particle is shattered by a pressure effect rather than cooked. This is a difference in how energy is delivered. It is not a promise about what happens to a particular face, and the wavelength and energy still have to be chosen for the skin. The pico laser in Asian skin guide and the PIH condition page cover this in depth. Darkening that does occur is managed like other PIH, with the same gentle toning and topical approach. Sun protection decides how much of any result is kept.
“A laser removes pigment that has already been made. It does nothing about pigment that is still being made, and in melasma it can make more. So I name the pigment before I name the laser.”
Dr Sin YongOn Laser pigmentation removal
What laser pigmentation removal does not remove
Three situations are declined or redirected at assessment, because a laser would do harm or nothing.
Melasma
Melasma looks like pigment but behaves like a condition. Hormones, blood vessels and ultraviolet light all drive it. It sits at more than one depth in the skin, and it is sensitive to heat. An aggressive pigment laser triggers rebound, which is the familiar story of pigment that got worse after treatment. At Dr Sin Yong's practice, melasma starts with sun protection and medical treatment. If a laser is used, it begins with R2 Glow alone, aimed at the inflammation rather than at the pigment. The melasma treatment page sets out that plan. The pigmentation worse after laser guide explains what rebound looks like.
Pigment that is still being produced
A post-acne mark under active acne, a dark patch under ongoing friction or eczema, and darkening from a medicine that is still being taken will return after any laser. The driver is addressed first; the pigment is treated once it has stopped being made.
Lesions that need a diagnosis
Some spots are examined rather than ablated, which means destroyed by laser. These include a mole with atypical features, and a dark lesion that is changing, bleeding or irregular. They also include a seborrhoeic keratosis (a common raised, crusty spot) that does not look typical. Where indicated, the spot is excised for histology, meaning removed and checked under a microscope, or referred. Fragmenting a lesion with a laser destroys the information a doctor needs. The brown patches on the face guide helps sort which brown is which before a visit.
When pigmentation removal is not the right choice
Laser pigmentation removal is not right for everyone, and part of the assessment is deciding when to wait or to do something else first.
Pregnancy and breastfeeding. Elective laser is generally postponed, and pregnancy is linked with melasma, which starts with sun protection and medical treatment rather than laser.
A recent tan or sunburn. Treatment is deferred until the skin has settled, because tanned skin competes for the energy and darkens more easily.
Active acne, eczema or infection in the area. The inflammation is treated first, since pigment that is still being produced returns after any laser.
Photosensitising medicines or a keloid tendency. These change the timing or the plan, so every medicine and supplement is declared.
Expecting the pigment to go for good. Laser fragments pigment that has already been made; sun spots, freckles and melasma can return, so maintenance is part of the plan.
A spot that is new, changing, bleeding or unlike the others is examined before anything else, and where indicated it is excised for histology or referred to a dermatologist rather than lasered.
Laser treatment for pigmentation: what happens at the visit
History. When the pigment appeared, whether it darkens with sun, pregnancy or hormonal treatment, which medicines and supplements are taken, and what has been tried, including any previous laser elsewhere.
Examination. The pigment is identified by its pattern, depth and distribution, with magnification where the lesion needs it. Sun spots, freckles, post-inflammatory marks, melasma, Hori's naevus and keratoses are separated at this step, because the rest of the plan depends on it.
Skin type and risk. Fitzpatrick type, any history of darkening after procedures, and current sun exposure are recorded, and these set the wavelength and energy.
The plan, including no laser. Where the pigment is melasma or is still being produced, the plan may begin with sun protection and topical treatment and no laser at all. Where a laser is suitable, the instrument, the staging and the expected recovery are explained before anything is agreed.
Treatment. Dr Sin Yong performs every laser treatment personally after this assessment. Eye protection is worn, a test patch is done where appropriate; the treated spots darken and the surrounding skin is left intact.
Review. Response is reviewed before any repeat is planned, and the interval is set individually rather than in advance.
Enquiries on WhatsApp are answered in English and Chinese. Questions worth asking any doctor before a laser are listed on the consultation process page.
Many clinic websites show before-and-after photographs for pigmentation removal. This page does not, because Singapore’s rules on healthcare advertising do not allow licensed clinics to publish before-and-after or after-only images, or patient testimonials, to promote treatment. The images on this page are illustrative and are not patients.
Aftercare after laser pigmentation removal
Aftercare is simple and it decides how much of the result is kept.
Treated spots darken and then lift away on their own; they are not picked or scrubbed.
A bland moisturiser keeps the surface comfortable, and active skincare such as retinoids and acids is paused until the skin has settled, as advised at the visit.
Broad-spectrum sunscreen is applied daily and reapplied outdoors, because new pigment forms with sun and the treated skin is more reactive while it heals. The sunscreen guide covers what to use in this climate.
Heat is avoided while the skin settles where melasma is part of the picture: saunas, hot yoga and prolonged outdoor exercise can provoke it.
Any darkening that appears after the spots have lifted, or redness that persists, is reported so that it can be managed early.
The fee depends on the pigment type, the area treated and the number of sessions, and is quoted in writing after the assessment; each factor, pigment by pigment, is set out on pigmentation removal price in Singapore.
Watch
Dr Sin Yong explains
“Turning the energy up feels like progress — and often triggers rebound, darker than the starting point.”Dr Sin Yong
Pigmentation removal: sessions, downtime and how long it lasts
Pigmentation removal in Singapore at a glance
How many sessions
Sun spots and freckles: 1–3 pico laser sessions. Hori's naevus: 4–6 sessions. Melasma: a low-energy course of 4–6 sessions with topical treatment.
Downtime
Spots darken for 3–7 days before flaking; melasma toning usually leaves only mild, short-lived redness.
How long it lasts
Sun spots stay cleared with sun protection; melasma is controlled rather than cured and needs maintenance.
Figures are typical ranges from Dr Sin Yong's practice and the published literature; your plan, including the number of sessions, is set after the assessment and may differ. Fees are given in writing after the assessment: see how we quote.
Frequently Asked Questions
Most people describe a pigment laser as a rapid snapping sensation with warmth. Low-energy toning is usually the gentlest, spot treatment over a discrete mark feels sharper, and fractional modes feel more intense. Topical anaesthetic is applied where the area or setting calls for it, and you can ask Dr Sin Yong to pause at any point. Sharp pain, blistering or swelling that increases afterwards is not expected and should be reported to the clinic.
Neither suits every pigment. A picosecond laser fragments discrete pigment such as sun spots and freckles with very short pulses and less heat spread, which matters in Fitzpatrick III to V skin. IPL is broad-spectrum light in millisecond pulses that heats pigment and vessels together, so in darker skin the margin before darkening is narrower. Melasma suits neither used aggressively. Dr Sin Yong names the pigment first, then chooses the tool for it.
It depends on the pigment and its depth, so no timeline is promised. A treated sun spot darkens and crusts before it flakes away, dermal pigment such as Hori’s naevus is cleared slowly by the body, and post-inflammatory marks fade as the inflammation behind them settles. Darkening that appears after the skin has healed is reviewed rather than treated over. Dr Sin Yong checks the response at each review before planning anything further.
A pigmentation facial works at the surface of the skin and does not reach pigment that sits deeper in the epidermis or in the dermis. Sun spots and Hori’s naevus need a laser matched to their depth, and melasma needs sun protection and medical treatment first. A facial can sit alongside that plan, but it does not replace a diagnosis of which pigment is present.
In Singapore, medical devices, which include most aesthetic lasers, energy devices and injectable fillers, must be registered with the Health Sciences Authority (HSA) before they can be supplied. Only the lowest-risk class A devices are exempt. Ask which laser will be used and check it on HSA’s medical device register, and check that the clinic holds an MOH licence.
Laser fragments pigment that is already in the skin; it does not change why the skin made it. Sun spots and freckles can return with further sun exposure, post-inflammatory marks with new acne or irritation, and melasma is a chronic tendency that heat, sun and hormones can bring back. That is why daily broad-spectrum sunscreen, a topical plan where needed and review appointments are part of pigmentation removal.
Sometimes, depending on the pigment. Lightening creams act on melanin production in the epidermis, so they have a central role in melasma and post-inflammatory hyperpigmentation, alongside strict sun protection. They do not reach dermal pigment such as Hori’s naevus, and a discrete sun spot usually answers to a pigment laser rather than a cream. Strong creams of unclear origin bought online carry their own risks, so the pigment is typed before anything is chosen.
The plan rather than a fixed list: which pigment is being treated and how deep it sits, and how much of the face or body is involved. It also depends on whether one laser or two protocols are used, and how the visits are staged. A figure quoted before assessment would not reflect your skin, so fees are set out at consultation before anything is agreed.
Flat age spots, which doctors call solar lentigines, are among the pigments that respond well to laser: a picosecond spot treatment darkens the spot, which forms a fine crust and flakes away. Raised age spots are usually seborrhoeic keratoses and are removed differently, with CO2 laser, radiofrequency or a shave after examination. Further sun brings new spots, so daily sunscreen is part of the plan, and how many visits are needed is decided at review.
Be cautious. The Health Sciences Authority (HSA) has found whitening creams sold online and from overseas that contained mercury far above the permitted limit. Others contained hydroquinone and tretinoin, which HSA says should only be used under medical supervision. Promises of quick or dramatic whitening are a warning sign. Where a cream belongs in a pigmentation plan, Dr Sin Yong chooses it after examining the pigment and explains how long to use it.
References
Treatment of pigmentary disorders using picosecond laser in Asian patients: A meta-analysis and systematic review. Dermatologic Therapy, 2021. source
A review of laser and light therapy in melasma. International Journal of Women's Dermatology, 2017. source
Randomized, evaluator-blinded comparative study of a KTP 532-nm picosecond laser and an alexandrite 755-nm picosecond laser for the treatment of solar lentigines in Asians. Journal of Cosmetic Dermatology, 2022. source
Lasers and Energy-Based Devices for Treatment of Pigmented Lesions With Histologic and Ultrastructural Imaging Correlation: A Systematic Review. Dermatologic Surgery, 2026. source
Selective photothermolysis: precise microsurgery by selective absorption of pulsed radiation. Science, 1983. pubmed.ncbi.nlm.nih.gov
A Split-Face, Single-Blinded, Randomized Controlled Comparison of 532 nm Picosecond Nd:YAG Laser versus 532 nm Q-Switched Nd:YAG Laser in the Treatment of Solar Lentigines. Kim JY, Yang J, Huh G, Choi YJ, Kim WS. 32(1):8-13. Annals of Dermatology, 2020. doi.org
Postinflammatory Hyperpigmentation: Epidemiology, Clinical Presentation, Pathogenesis and Treatment. Kaufman BP, Aman T, Alexis AF. 19(4):489-503. American Journal of Clinical Dermatology (PMID 29222629), 2018. pubmed.ncbi.nlm.nih.gov
About this page: written and medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last reviewed 8 November 2026 · Illustrative images only, not patients · Editorial policy
