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

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
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 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 see | What it usually means, and what to ask |
|---|---|
| Pico laser | Any laser with a picosecond pulse. Platforms differ in wavelength and modes, so ask which one, and why for your pigment. |
| Pico toning | Low-energy passes across the whole face for diffuse, uneven tone. Ask how the spacing is decided, and when it stops. |
| Pico spot treatment | Higher 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 pico | The beam split into many small points for texture around pores, with untreated skin between them. |
| Pico facial | A marketing name that may mean toning, or toning combined with a facial. Ask which is actually being done. |
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.
| Group | What it looks like | What usually happens |
|---|---|---|
| Tends to suit | Well-defined sun spots and freckles; post-inflammatory marks once the cause is controlled; texture around pores, in fractional mode | The pigment is named, then the mode and wavelength are chosen for it |
| Used with care | Melasma; deeper pigment such as Hori's naevus; skin that darkens easily | Conservative settings within a longer plan; some deep pigment responds poorly |
| Should wait | A recent tan; active infection or inflammation; photosensitising medicine; a keloid tendency; pregnancy | Treatment is deferred, not squeezed in |
| Better served elsewhere | Laxity, redness from vessels, active acne | Other approaches are assessed instead |
| Examined first | Any mark that is new, changing, bleeding or unlike the others | Examined, and referred to a dermatologist where needed, before any laser |
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 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.
| Option | What it does | Suits | Not for |
|---|---|---|---|
| Picosecond laser (T2 Frax Radiance on the DEKA TORO) | Fragments pigment mainly by a pressure effect; fractional mode works on texture | Sun spots, freckles, selected post-inflammatory marks | The drivers of melasma, laxity or vessel redness |
| Q-switched nanosecond laser and low-fluence 1064 nm toning | Longer pulses that rely more on heat; toning uses gentle repeated passes | Diffuse uneven tone and some pigment, at conservative settings | Aggressive 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 pigment | Pigment that sits with ongoing redness or irritation | A discrete deposit that needs fragmenting |
| Fractional CO2 (S3 Resurfacing Lift on DEKA SmartXide Tetra CO2) | Resurfaces and remodels deeper texture | Acne scars and deeper textural change | Pigment alone, or freshly tanned skin |
| Topicals and sun protection | Lighten pigment and slow new pigment forming | Every pigment plan, melasma in particular | Clearing a discrete sun spot on their own |
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.
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.
| Concern | Why pico laser is not the answer | What is assessed instead |
|---|---|---|
| New pigment forming | Sun, rubbing and inherited tendency can bring marks back | Daily sun protection, which is part of the treatment |
| The causes of melasma | Its hormonal, vascular and ultraviolet drivers are untouched, and aggressive settings can darken it | Photoprotection and topical therapy within a longer plan; see melasma treatment |
| Redness from vessels | Haemoglobin is not the picosecond target | R2 Glow, or the R2T2 laser where pigment sits over redness; pulsed-dye and yellow lasers are not offered here |
| Laxity and sagging | Pico laser is not a lifting or tightening treatment | Other approaches; see sagging face treatment |
| Deeper scars | Fractional mode works on texture around pores, a narrower job | Fractional CO2, sequenced as in pico laser with the S3 Resurfacing Lift; see acne scar treatment |
| Pore size and active acne | It does not shrink pores or treat active acne | Acne 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.
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.
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 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:
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.
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.
| Stage | What is usually expected | What needs a call | Sun and skincare |
|---|---|---|---|
| On the day | Redness, warmth and mild swelling; treated spots may look darker | Blistering, bleeding that does not stop with gentle pressure, or increasing pain | Cleanse gently; no scrubs, acids or retinoids; sunscreen and shade |
| While crusts form | A fine crust over darkened spots; fractional mode can feel rough | Thick, yellow or oozing crusts, or spreading redness and warmth | Do not pick; plain moisturiser; avoid saunas and very hot places |
| As the skin settles | Pink new skin where crusts have lifted | New dark patches in the treated area | Daily broad-spectrum sunscreen; restart actives when advised |
| At review | Healing and response are checked before anything further | Anything that worried you since the visit | The plan is adjusted to how the skin responded |
The full checklist is on pico laser aftercare, alongside all aftercare guides.
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.
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.
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
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.
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.
WhatsApp Dr Sin Yong →or use the enquiry formA 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
The pico laser protocol on the DEKA TORO.
What decides the fee.
Each pigment type, and the tools compared.
Gentle passes for diffuse, uneven tone.
Diagnosis before device.
For pigment that sits with inflammation.
Consultations by appointment at Orchard Road, Singapore.
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