Pico laser

Pico laser in Singapore:
pigment, pores and the risk of darkening

Medically reviewed by Dr Sin Yong · Last reviewed · 15 min read

In brief

Pico laser treatment in Singapore makes sense once the pigment is named. Sun spots, freckles and some post-inflammatory marks are its natural targets. It does not treat melasma's causes, vessel redness, laxity or active acne. Dr Sin Yong runs it as the T2 Frax Radiance protocol on the DEKA TORO, with settings chosen for skin that darkens easily.

Also called: picosecond laser, pico toning, 皮秒激光, ピコレーザー

Close view of a woman's cheek in soft light, an illustrative image about facial pigmentation

Reviewed by Dr Sin Yong · MBBS (NUS) · MRCS (Edinburgh) · MSc Aesthetic Medicine with Distinction (Queen Mary, London) · MSc Practical Dermatology (Cardiff)

Global Key Opinion Leader for CLASSYS, DEKA, HIRONIC, FOTONA, ALMA, LUTRONIC and ILOODA, invited to share his clinical expertise. He assesses and treats patients himself at his clinic on Orchard Road, Singapore. About Dr Sin Yong

Published 7 October 2026 · Reviewed by Dr Sin Yong

In this guide
  1. What a pico laser is
  2. Who it suits, and who should wait
  3. Pico laser compared with other options
  4. What pico laser cannot do
  5. Risks and side effects
  6. What to expect, and aftercare
  7. What decides the cost
  8. How Dr Sin Yong approaches it
  9. Questions
  10. Related pages

What a pico laser is, and how it works on pigment

Pico is a unit of time, not a brand or a protocol. A picosecond laser delivers energy in pulses of around a trillionth of a second, roughly a thousand times shorter than the nanosecond pulse of a Q-switched laser. The pigment particle has no time to pass heat to the skin around it, so it is broken up mainly by a pressure effect rather than by heat, and the body then clears the fragments.

That matters in Fitzpatrick III to V skin, which covers most patients in Singapore. Inflammation drives post-inflammatory hyperpigmentation, the darkening that can follow injury, and less heat spreading outward means less of that inflammation. It is a difference in how energy is delivered, not a promise about a particular face. The wavelength and energy still have to suit the skin in front of the doctor.

The names you will see on clinic menus

The word pico is used loosely in Singapore, so two people can both say they had pico and have had quite different treatments.

Term you may seeWhat it usually means, and what to ask
Pico laserAny laser with a picosecond pulse. Platforms differ in wavelength and modes, so ask which one, and why for your pigment.
Pico toningLow-energy passes across the whole face for diffuse, uneven tone. Ask how the spacing is decided, and when it stops.
Pico spot treatmentHigher energy aimed at one discrete mark, such as a sun spot, which darkens and forms a fine crust. Ask whether the mark has been examined first.
Fractional picoThe beam split into many small points for texture around pores, with untreated skin between them.
Pico facialA marketing name that may mean toning, or toning combined with a facial. Ask which is actually being done.

Who pico laser suits, and who should wait

Pico laser suits discrete surface pigment most closely, and it is a poor fit for pigment whose cause continues. Sun spots and freckles are the clearest match. Post-inflammatory marks may be treated once the cause, such as acne, is controlled. Melasma is the exception: it is chronic, with hormonal, vascular and ultraviolet drivers that no laser touches, and heat provokes it.

GroupWhat it looks likeWhat usually happens
Tends to suitWell-defined sun spots and freckles; post-inflammatory marks once the cause is controlled; texture around pores, in fractional modeThe pigment is named, then the mode and wavelength are chosen for it
Used with careMelasma; deeper pigment such as Hori's naevus; skin that darkens easilyConservative settings within a longer plan; some deep pigment responds poorly
Should waitA recent tan; active infection or inflammation; photosensitising medicine; a keloid tendency; pregnancyTreatment is deferred, not squeezed in
Better served elsewhereLaxity, redness from vessels, active acneOther approaches are assessed instead
Examined firstAny mark that is new, changing, bleeding or unlike the othersExamined, and referred to a dermatologist where needed, before any laser

Who should wait, and who is referred on

Elective laser is generally postponed in pregnancy, so tell Dr Sin Yong if you are pregnant, planning pregnancy or breastfeeding. Where the honest answer is that laser is not the right tool, you are told so. Each pigment has its own page: pico laser for freckles, for PIH, for melasma, for acne scars and for dark skin. The full check is on am I suitable for pico laser, and which pico.

Pico laser in Singapore compared with other pigment and texture options

Pico laser in Singapore is one option among several for pigment and texture. The choice depends on what the mark is, how deep it sits and what keeps producing it.

OptionWhat it doesSuitsNot for
Picosecond laser (T2 Frax Radiance on the DEKA TORO)Fragments pigment mainly by a pressure effect; fractional mode works on textureSun spots, freckles, selected post-inflammatory marksThe drivers of melasma, laxity or vessel redness
Q-switched nanosecond laser and low-fluence 1064 nm toningLonger pulses that rely more on heat; toning uses gentle repeated passesDiffuse uneven tone and some pigment, at conservative settingsAggressive or open-ended use on melasma
Inflammation-directed laser (R2 Glow)Long-pulsed 755 nm and 1064 nm aimed at the inflammation that keeps producing pigmentPigment that sits with ongoing redness or irritationA discrete deposit that needs fragmenting
Fractional CO2 (S3 Resurfacing Lift on DEKA SmartXide Tetra CO2)Resurfaces and remodels deeper textureAcne scars and deeper textural changePigment alone, or freshly tanned skin
Topicals and sun protectionLighten pigment and slow new pigment formingEvery pigment plan, melasma in particularClearing a discrete sun spot on their own

Which wavelength and which mode

The TORO's picosecond emission is at 785 nm, and the same system carries 532 nm and 1064 nm nanosecond emissions. Wavelength follows where the pigment sits. 532 nm is absorbed strongly by melanin and does not travel far, so it is directed at superficial sun spots and freckles. 1064 nm reaches further and is absorbed less by epidermal melanin, the more conservative choice in darker skin and for deeper pigment. 785 nm sits between them.

The mode follows the diagnosis: spot treatment for a discrete mark, low-energy toning across the face for diffuse tone, or fractional delivery for texture. A melasma patch, a sun spot and a post-acne mark can sit side by side on one cheek, and each is handled differently. Devices are compared on pico vs Q-switched laser, BBL vs IPL vs pico, LaseMD vs pico vs R2 Glow and R2T2 vs pico laser toning. Tattoo removal is a separate evaluation, on a picosecond laser on the Fotona StarWalker platform.

What pico laser cannot do, and what is used instead

Pico laser breaks up pigment that is already in the skin. It does nothing about the reason the skin made it, and it cannot tell a harmless spot from one that needs a diagnosis. That is the doctor's job.

ConcernWhy pico laser is not the answerWhat is assessed instead
New pigment formingSun, rubbing and inherited tendency can bring marks backDaily sun protection, which is part of the treatment
The causes of melasmaIts hormonal, vascular and ultraviolet drivers are untouched, and aggressive settings can darken itPhotoprotection and topical therapy within a longer plan; see melasma treatment
Redness from vesselsHaemoglobin is not the picosecond targetR2 Glow, or the R2T2 laser where pigment sits over redness; pulsed-dye and yellow lasers are not offered here
Laxity and saggingPico laser is not a lifting or tightening treatmentOther approaches; see sagging face treatment
Deeper scarsFractional mode works on texture around pores, a narrower jobFractional CO2, sequenced as in pico laser with the S3 Resurfacing Lift; see acne scar treatment
Pore size and active acneIt does not shrink pores or treat active acneAcne is controlled first; see acne treatment

Each limit is expanded on what pico laser cannot do. Where pico sits against R2 Glow, FSX, S3 and the Time Freeze Laser LCLR® is set out across the laser guides, and pigment birthmarks such as naevus of Ota are covered on birthmark removal.

Risks and side effects: why pigment can darken after pico laser

Pico laser is not risk-free. Redness, warmth, mild swelling, and temporary darkening and crusting over treated spots are expected. The risks that matter are:

Injured skin makes more melanin, and Asian skin makes it readily. The usual causes of darkening are energy too high for the skin, treatment repeated too soon, ultraviolet exposure on freshly treated skin, and melasma treated as a sun spot. It tends to fade with time and sun protection, but slowly, so prevention matters more than correction. The pigment is identified first, settings are chosen for the skin, toning is not run on an open-ended schedule, and strict sun protection afterwards is part of the treatment. More is on pico laser gone wrong, pigmentation that gets worse after laser, pico laser and PIH risk and post-inflammatory hyperpigmentation.

When to contact the clinic

Contact the clinic if crusts become thick, yellow or oozing, if blisters appear, or if pain, swelling or warmth are increasing instead of settling. Dark marks that appear later are reviewed rather than treated over. The complication care page lists the signs that need same-day attention.

Pico laser treatment: before, on the day and aftercare

Pico laser treatment is planned around a diagnosis, so the first visit is a consultation, and the laser is not fired on the same day unless that was agreed in advance. Every step is done by Dr Sin Yong:

  1. Consultation: history, examination of the skin in appropriate light and with a dermatoscope where needed, and a decision on what the pigment is
  2. A written plan naming the mode (spot, toning or fractional), the wavelength for where the pigment sits, the alternatives including topicals or no laser, and the review; consent is taken with time to decide
  3. On the day, the skin is cleansed and topical anaesthetic is applied where the area or setting calls for it
  4. The laser is delivered by Dr Sin Yong in the planned mode; most people describe a rapid snapping sensation
  5. Written aftercare for the mode used, then healing is checked at review before any further treatment is planned
What to expect: pico laserFour-step timeline for pico laser: consultation, treatment day, healing and review, with what usually happens and what to avoid.What to expect: pico laser1ConsultationPigment type confirmed;test patch whereappropriate2Treatment daySnapping sensation;mild redness andslight warmth3HealingDarkening then flakingpossible; strict sunprotection; no picking4ReviewReview arranged toassess how the pigmenthas respondedQualitative phases only; what applies to you, and when, is discussed at consultation and review.
Consultation, treatment day, healing and review for pico laser: what usually happens, sun protection, and that a review is arranged.

Before the visit

Avoid tanning and strong sun, because a recent tan means treatment is deferred. Pause retinoids and exfoliating acids as advised, and mention all medicines, pregnancy, a keloid tendency or cold sores. The test patch is explained on what to expect at a pico laser visit.

What changes with the mode

A treated spot darkens and forms a fine crust that flakes away on its own and should not be picked. Toning leaves warmth and redness that settle. Fractional delivery leaves pinpoint redness, mild swelling and a rough feel while the skin renews, so its aftercare is the longest. See pico laser downtime and side effects.

Aftercare, stage by stage

Pico laser aftercare by stage, described in words rather than days
StageWhat is usually expectedWhat needs a callSun and skincare
On the dayRedness, warmth and mild swelling; treated spots may look darkerBlistering, bleeding that does not stop with gentle pressure, or increasing painCleanse gently; no scrubs, acids or retinoids; sunscreen and shade
While crusts formA fine crust over darkened spots; fractional mode can feel roughThick, yellow or oozing crusts, or spreading redness and warmthDo not pick; plain moisturiser; avoid saunas and very hot places
As the skin settlesPink new skin where crusts have liftedNew dark patches in the treated areaDaily broad-spectrum sunscreen; restart actives when advised
At reviewHealing and response are checked before anything furtherAnything that worried you since the visitThe plan is adjusted to how the skin responded

The full checklist is on pico laser aftercare, alongside all aftercare guides.

What decides the cost of pico laser treatment in Singapore

Singapore's rules prevent clinics from advertising prices, so this page gives no figures, and a number given before assessment would not describe your skin. The fee follows the plan and is written and itemised after the consultation:

Each factor is explained on pico laser cost factors, and how fees are quoted explains why a lower figure elsewhere may describe a different device, plan or person performing the treatment.

What affects the number of visits

No visit count is quoted, because it depends on what the pigment is, how deep it sits and how the skin responds. Ongoing sun keeps new freckles forming. Thicker or widespread sun spots tend to need more, and a spot that does not respond is re-examined, as it may be a seborrhoeic keratosis. Deep pigment such as Hori's naevus needs gentle visits spaced further apart, and in melasma laser is an adjunct, not the main treatment. More is on how many pico laser sessions.

How Dr Sin Yong approaches pico laser

Dr Sin Yong delivers pico laser as his T2 Frax Radiance protocol on the DEKA TORO, in spot, toning or fractional mode. He starts with the pigment, not the device: the history, an examination in appropriate light with a dermatoscope where needed, and a test patch where appropriate. Options include topicals, photoprotection and no laser at all, and you are not expected to be treated on the day.

Where pigment sits with inflammation, he weighs T2 Frax Radiance against R2 Glow. Where pigment and scars coexist, pico is sequenced with fractional CO2.

“A pico laser breaks up pigment that is already there. It does nothing about the reason your skin made it, which is why melasma comes back and a sun spot usually does not.”

Dr Sin YongOn what the technology does and does not reach

Why this page has no before-and-after photographs

Singapore's rules on healthcare advertising do not allow licensed clinics to publish before-and-after images or patient testimonials, and someone else's skin says little about yours. The same settings can lighten one mark and darken another. What replaces the photographs is an examination: Dr Sin Yong explains what the treatment can and cannot change for you, records the plan in writing, and photographs your skin under standard light for your record, so that it can be compared at review.

Your next step
  1. 1. MessageWhatsApp +65 8023 7170 with what is bothering you. A reply comes from the clinic, not a bot.
  2. 2. AssessmentDr Sin Yong examines you himself on Orchard Road, with ultrasound where earlier filler is involved.
  3. 3. A plan in writingWhat he would do, what he would not, the fee factors, and the option of no treatment.

Every treatment is performed by Dr Sin Yong personally. Singapore Medical Council registered · invited to share his clinical expertise internationally as a Key Opinion Leader for CLASSYS, DEKA, HIRONIC, FOTONA, ALMA, LUTRONIC and ILOODA · HSA-registered devices · ultrasound-guided correction

Dr Sin Yong's aesthetic clinic in Singapore is on Orchard Road, a short walk from Orchard MRT. More about the aesthetic doctor in Singapore who performs every treatment.

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Pico laser Singapore: frequently asked questions

Pulse duration. Both fragment pigment, but a Q-switched laser works over nanoseconds, so more of the effect is thermal and more heat spreads into the surrounding tissue. The picosecond pulse is roughly a thousand times shorter, which matters most in darker skin, where heat drives post-inflammatory pigmentation.
Most people describe a rapid snapping sensation with some warmth, and tolerance varies with the area, the mode and the setting. Topical anaesthetic is applied where the area or setting calls for it, and fractional mode tends to feel more intense than low-energy toning. You can ask to pause at any point, and what to expect for your plan is explained beforehand.
It depends on the mode. Toning usually leaves warmth and redness that settle on their own. Spot treatment darkens the mark, which forms a fine crust that flakes off on its own. Fractional mode leaves pinpoint redness, mild swelling and a rough feel while the skin renews. How long each stage lasts varies from person to person, so it is discussed at consultation.
Singapore rules prevent advertising prices, so no figures are given. The fee depends on the area, what the assessment finds the pigment to be, the wavelengths and modes used, and how the plan is staged. It is quoted in writing after consultation, and each factor is explained on pico laser cost factors.
It depends on the pigment, and no duration is promised. Pico laser fragments pigment already present but does not stop new pigment forming, so ultraviolet exposure, rubbing and inherited tendency can bring marks back. Protection and review are part of the plan.
No. Melasma is a chronic condition driven by hormonal, vascular and ultraviolet factors that no laser addresses. Laser can have a conservative role within a longer plan of photoprotection and topical therapy, and aggressive settings can make melasma darker.
It is used routinely in Fitzpatrick III to V skin, which covers most patients in Singapore, but wavelength and energy must be chosen for the skin rather than applied from a fixed setting. Higher melanin raises the risk of post-inflammatory darkening if settings are too aggressive.
Picosecond lasers are used for tattoo removal, and at this practice tattoo removal uses a picosecond laser on the Fotona StarWalker platform. Ink colour, density, depth and skin type decide the wavelength and energy, and some colours respond less predictably than others. It is planned at a separate evaluation from pigment treatment, and how many visits are needed is not something that can be promised.

References

A Systematic Review of Picosecond Laser in Dermatology: Evidence and Recommendations. Lasers in Surgery and Medicine (PubMed), 2021. source

Picosecond laser. DermNet. source

Post-inflammatory hyperpigmentation: A systematic review of treatment outcomes. Journal of the European Academy of Dermatology and Venereology (PubMed), 2024. source

Use of a picosecond pulse duration laser with specialized optic for treatment of facial acne scarring (Brauer JA, Kazlouskaya V, Alabdulrazzaq H, et al.). JAMA Dermatology, 2015. pubmed.ncbi.nlm.nih.gov

A retrospective analysis on the management of pigmented lesions using a picosecond 755-nm alexandrite laser in Asians (Chan JC, Shek SY, Kono T, Yeung CK, Chan HH). Lasers in Surgery and Medicine, 2016. pubmed.ncbi.nlm.nih.gov

Medically reviewed by Dr Sin Yong · Last reviewed 24 October 2026 · Editorial policy

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