Medically reviewed by Dr Sin Yong · Last reviewed · 10 min read · Jump to questions
Published 20 October 2026 · Reviewed by Dr Sin Yong

Lasers in Singapore are chosen by target, not by name: a wavelength is absorbed by pigment, by haemoglobin, by water or by collagen, and the pulse decides whether it shatters, heats or vaporises. That is why the same brown mark, red mark, scar or sag is sent to different lasers. This page gathers every laser guide on the site and sorts them by the problem each one answers.
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These guides are for three kinds of reader. The first has a brown mark, a red mark, a scar, a pore pattern or a dull tone and has been told, by a friend or by an advertisement, that a particular laser fixes it; they want to know whether that is true for their mark, in their skin. The second has darker or Asian skin and has either had a dark patch after a laser elsewhere or has been told they are not a candidate; they want to know which lasers are safer in Fitzpatrick IV to VI and which carry the most risk of post-inflammatory darkening. The third is deciding between a laser and something else altogether: a lift, an injectable, a cream, or a referral.

A laser is the right tool when the target absorbs its wavelength and the surrounding skin does not. That is the whole logic of the table below. It is the wrong tool when the problem is in a layer the laser cannot reach, which is why no laser here is sold for melasma without a diagnosis first, why a tethered scar is released by subcision before any resurfacing, why an ice-pick scar goes to TCA CROSS, and why a face that has dropped is assessed for lifting before a skin laser is offered. The laser for dark skin guide sets out the skin-type logic that runs through every page.
What the guides have in common is the approach: the diagnosis is made in person, often with a Wood's lamp or dermatoscope, the wavelength and settings are chosen by Dr Sin Yong for the skin in front of him, a test patch is used where the skin type calls for it, and the plan is reviewed rather than counted. No session numbers or fees are quoted before assessment; the how we quote page explains why. WhatsApp enquiries are answered in English and Chinese.
Each row names the laser or protocol usually considered on this site for that problem, the thing it cannot do, and the page to read. It is a reading guide; the actual choice is made after the skin is examined, and more than one row often applies to the same face.
| Problem | Laser or protocol | What it cannot do | Read |
|---|---|---|---|
| Sun spots, freckles, a discrete brown spot | T2 Frax Radiance: picosecond 785 nm on the DEKA TORO | Control the drivers of melasma, release a scar, shrink a pore or tighten skin | Pico laser |
| Dull, uneven tone that keeps coming back; red marks after acne | R2 Glow: long-pulsed 755 nm and 1064 nm, directed at inflammation | Fragment an established pigment deposit; that needs the picosecond pass | R2 Glow |
| Pigment and inflammation together | R2T2: R2 Glow and T2 Frax Radiance as one plan | Replace sun protection or the melasma diagnosis | R2T2 |
| Melasma, or PIH in darker skin | Diagnosis first; creams and tranexamic acid often lead; low-fluence 1064 nm laser toning when it helps | Cure melasma; aggressive settings can rebound it | Melasma treatment · Laser toning |
| Fine lines, open pores, superficial or shallow scars | FSX Laser: 1540 nm erbium glass and 1927 nm thulium | Reach a deep boxcar or a tethered rolling scar | FSX Laser |
| Deeper acne scars: boxcar and rolling | S3 Resurfacing Lift: fractional CO2 on the DEKA SmartXide Tetra Pro; tethered scars are released by subcision first | Release a tether from above, or fill an ice-pick, which goes to TCA CROSS | S3 Resurfacing Lift · CO2 laser |
| Redness, rosacea-type flushing, pores with laxity | 少女光 laser: DEKA RedTouch Pro at 675 nm, absorbed by collagen | Treat a diagnosed rosacea on its own; the condition is managed first | 少女光 laser |
| Red veins on the face | Long-pulsed 1064 nm Nd:YAG for deeper vessels | Stop new vessels forming; that depends on the cause | Facial red veins · Nd:YAG laser |
| A sagging jowl or jawline; a heavy chin; Sculptra or Ellansé overfill; an excess fat graft | Time Freeze Laser LCLR®: long-pulsed 755 nm and 1064 nm with a Sculpting mode | Lift what only surgery can; dissolve HA filler, which is hyaluronidase's job | Time Freeze Laser LCLR® |
| Skin tightening by a four-mode erbium and Nd:YAG protocol | Fotona 4D, explained; availability is confirmed at consultation | Reposition a face that has dropped; that is the VF Lift – Vertical Facelift's layer | Fotona 4D |
| Unwanted hair | 755 nm alexandrite for lighter skin, 1064 nm Nd:YAG for darker skin, chosen area by area | Treat white, grey or very fine hair | Laser hair removal · Hair removal guides |
| A tattoo | Picosecond pulses, wavelength by ink colour | Clear every colour equally, or spare the skin from pigment change in every skin type | Tattoo removal |
| A mole, skin tag or wart | CO2 laser after a dermatoscope check, or shave, snip or electrosurgery by site | Replace histology for a mole with atypical features | Mole removal · Skin tags · Warts |
| Thinning hair | H2LT hair hyperstimulation laser | Regrow a follicle that has already been lost | H2LT |
| Any of the above in Fitzpatrick IV to VI skin | Longer wavelengths, lower fluence, lower density, test patches | Remove the risk of post-inflammatory darkening entirely | Laser for dark skin |
“A laser does not know what a brown mark is. It only knows what absorbs it. So the diagnosis is mine to make before the laser is switched on, and if the diagnosis is melasma, the laser waits.”
Dr Sin YongOn choosing a laser
Every treatment is performed by Dr Sin Yong personally. Singapore Medical Council registered · invited to share his clinical expertise internationally for CLASSYS, DEKA, Fotona, Hironic and Ilooda.
Book an assessment with Dr Sin Yong on Orchard Road; the mark, scar or sag is examined and your skin type graded before any laser is named. How consultations work.
WhatsApp Dr Sin Yong →or use the enquiry formIt depends on the pigment. A discrete sun spot or freckle usually goes to the picosecond laser, T2 Frax Radiance on the DEKA TORO. Dull, inflamed, uneven tone goes to R2 Glow, which is directed at the inflammation rather than the deposit. Melasma is diagnosed first and often led by creams and tranexamic acid, with low-fluence 1064 nm toning only where it helps. Hori's naevus needs a wavelength that reaches dermal pigment. The pigmentation removal page sorts these.
Depth decides. Superficial and shallow scars, fine lines and pores go to the FSX Laser, 1540 nm and 1927 nm; deeper boxcar and rolling scars go to the S3 Resurfacing Lift, fractional CO2 on the DEKA SmartXide Tetra Pro. A tethered scar is released by subcision before any resurfacing, because a laser cannot free a tether from above, and an ice-pick scar goes to TCA CROSS. Brown or red marks left by acne are not scars and go to the pigment or inflammation lasers.
Laser is used in dark and Asian skin when the wavelength, fluence and density are chosen for the skin. Most of Singapore is Fitzpatrick III to V, so longer wavelengths such as 1064 nm, lower fluence, lower density on fractional lasers, test patches and strict sun protection are the rule rather than the exception. The risk that cannot be removed entirely is post-inflammatory darkening, which is why the laser for dark skin guide is the first page to read if that describes your skin.
Pico fires picosecond pulses that fragment pigment mainly by pressure, which suits a discrete deposit. Laser toning is low-fluence 1064 nm delivered in gentle passes to nudge tone, PIH and diagnosed melasma. R2 Glow uses long-pulsed 755 nm and 1064 nm energy on the low-grade inflammation that keeps producing pigment, leaving the surface intact. R2T2 runs R2 Glow and T2 Frax Radiance together when both the deposit and its driver are present.
Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color. Journal of Clinical and Aesthetic Dermatology 3(7), 2010. source
Long pulsed 1064 nm Nd:YAG laser treatment for wrinkle reduction and skin laxity: evaluation of new parameters. International Journal of Dermatology 54(9) (Hong JS, Park SY, Seo KK, et al.), 2015. source
Laser hair removal: a review. Dermatologic Surgery 39(6), 2013. source
About this page: written and medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last reviewed 20 October 2026 · Illustrative images only, not patients · Editorial policy
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