Guide · Scar removal
Scar removal in Singapore a guide by scar type, and what improvement really means
No treatment erases a scar, but most scars can be made flatter, smoother or less noticeable. The first step is knowing which kind of scar you have, because sunken, raised, surgical, stretch and burn scars each respond to different treatment.
Quick answer
- Scar removal in Singapore really means scar improvement: no treatment turns scar tissue back into untouched skin, but the right method can make a scar flatter, smoother, softer and closer in colour. The method depends on the type: sunken (atrophic) scars, raised (hypertrophic) scars, keloids, surgical scars, stretch marks and burn scars each need a different plan.
- Atrophic scars from acne or chickenpox are matched by shape: subcision for tethered rolling scars, TCA CROSS for narrow ice pick and chickenpox pits, and fractional laser or RF microneedling for boxcar scars and texture. Raised scars and keloids are flattened instead, with silicone, pressure, steroid injections into the scar and laser.
- Most scar treatment is medical. Dr Sin Yong's 4D Scar Reconstruction at IN Eternity Clinic combines subcision, TCA CROSS, fractional CO2 laser and filler for mixed acne scars, priced at consultation. SkinRev Lab's SKINTIGHT microplasma can refine surface texture, but it does not change deep scar structure.
- Expect several sessions over months, with collagen remodelling continuing after the last one. In Asian skin, temporary darkening (PIH) is the main risk. Fresh burns, and scars that grow, bleed, ulcerate or limit movement, should be seen by a doctor first.
Start here
Can scars be removed? What scar removal really means
A scar is the skin's repair tissue. Its collagen is laid down in dense, parallel bundles rather than the woven pattern of normal skin, and it has no hair follicles or sweat glands. That is why no cream, laser or procedure can turn a scar back into skin that was never injured.
What treatment can do is change the features that make a scar noticeable: height (flattening a raised scar or lifting a sunken one), texture, colour and stiffness. A new scar also keeps remodelling for about 12 to 18 months, so its age affects both the method and the timing.
A realistic goal is a scar that is less visible in everyday light and more comfortable. Treat any promise of complete scar removal, especially in one session, as a warning sign. Flat red or brown marks left by acne are not true scars, and usually fade with time and sun protection.
Scar types
Scar treatment in Singapore by scar type
Most people with acne scarring have a mix of types, so the plan is usually built scar by scar. Raised scars and keloids are planned differently from sunken scars, and treatments that help one can worsen the other, which is why a doctor confirms the type before anything starts.
| Scar type | What it looks like | Main options | Who treats it |
|---|---|---|---|
| Atrophic acne scars (rolling, boxcar, ice pick) | Sunken dips, pits or wave-like shadows | Subcision, TCA CROSS, fractional CO2 laser, RF microneedling, filler | Doctor |
| Chickenpox scars | Round, punched-out dips, often only a few, on the face | TCA CROSS, punch techniques, subcision, fractional laser | Doctor |
| Hypertrophic scars | Raised, firm and often red, staying within the wound line | Silicone, pressure, steroid injections, laser | Doctor |
| Keloids | Raised scar that spreads past the wound edge and may keep growing | Combined plan: steroid injections, silicone, pressure, laser; surgery only with other measures | Doctor |
| Surgical and injury scars | Lines that may be red, raised, widened or dented | Early silicone and sun care; fractional CO2, non-ablative laser, RF microneedling | Doctor |
| Stretch marks | Red or purple lines that fade to white or silver | RF microneedling, fractional laser; microplasma for surface texture | Doctor; SkinRev Lab for surface texture |
| Burn scars | Thick, tight or discoloured skin, sometimes limiting movement | Burns care: pressure garments, silicone, laser, surgery for tight scars | Doctor or burns team |
| Acne marks (not true scars) | Flat red or brown marks where spots were | Sun protection, creams, gentle laser if persistent | Often fade; doctor if they persist |
Atrophic scars
Atrophic scars: rolling, boxcar and ice pick
Atrophic scars are sunken scars where tissue has been lost, most often after inflammatory acne, and also after chickenpox or injury. The classification most doctors use divides atrophic acne scars into three types: ice pick scars (narrow, deep pits), rolling scars (broad, soft dips pulled down by fibrous bands) and boxcar scars (round or oval dips with sharp edges).
Each type needs a different tool. Rolling scars respond mainly to subcision, which cuts the tethering bands, often followed by laser. Ice pick and narrow, deep boxcar scars need focused methods such as TCA CROSS or punch techniques, because resurfacing lasers rarely reach the bottom. Shallow boxcar scars and general texture respond to fractional CO2 laser or RF microneedling, and lost volume can be supported with filler.
Combining methods tends to work better than any single one. A 2026 network meta-analysis of 56 randomised trials in moderate to severe atrophic acne scars found combination treatments generally outperformed single treatments, with fractional CO2 laser plus subcision among the most consistent. Active acne should be controlled first.
Chickenpox scars
Chickenpox scar removal: round pits that need focused treatment
Chickenpox scars form when blisters are scratched or become infected and the damage reaches the deeper layer of skin. A review of treatments for these scars found depressed scars documented in up to 18% of people after chickenpox. They are usually round, punched-out dips with steep edges, often only a few, and they behave much like ice pick or boxcar acne scars.
Because there are usually few of them and they are deep, chickenpox scars suit focused, scar-by-scar treatment. In the published studies, chemical peeling with trichloroacetic acid (TCA) was the method used most often, with moderate to excellent responses reported; the review found too little evidence to compare other methods directly. Doctors also place high-strength TCA into individual pits (TCA CROSS), and may use punch excision or elevation for deep, sharp-walled scars, subcision if the scar is tethered, and fractional laser to blend the edges.
For children, it is usually sensible to wait until the skin has fully healed and the child can manage the downtime; sun protection helps any redness or brown marks fade meanwhile. An active chickenpox rash is a matter for a GP, not a cosmetic treatment.
Raised scars
Hypertrophic scars and keloids: flattening, not filling
Hypertrophic scars are raised and firm but stay within the line of the original wound, and many soften over one to two years. Keloids spread beyond the wound edge into normal skin and can keep growing for years after a small injury such as acne, a piercing or a vaccination. The Japan Scar Workshop consensus notes that people of Asian and African ancestry are highly prone to both.
Treatment aims to flatten and soften the scar and ease itch: silicone gel or sheets, pressure, triamcinolone injected into the scar, and laser. A Cochrane review found silicone gel sheeting improved scar thickness and colour in trials, but the studies were of poor quality, so the evidence is weak. An international advisory panel concluded that combining several methods gives the greatest chance of success, and supported pulsed-dye and fractional lasers as part of that plan.
A keloid that is simply cut out can return larger, so surgery is only considered with other measures before and after. Fillers, subcision and resurfacing aimed at sunken scars are not used on raised scars.
Surgical scars
Surgical, caesarean and injury scars
Scars from surgery, a caesarean section, mole removal or an accident can stay red and raised, sink into a dent, widen as the skin stretches, or turn darker or paler than the skin around them. Early care matters: once the wound has closed, protect it from the sun, which tends to darken new scars in Singapore's strong daylight, and follow your surgeon's advice on silicone, taping or massage.
Laser can be considered once healing is complete, and older scars can still be treated years later. At IN Eternity Clinic, Dr Sin Yong uses fractional CO2 laser (Tetra Pro S3) for settled, uneven scars, the non-ablative Luminescence Laser for newer or red scars with less downtime, and RF microneedling where a lower risk of darkening is a priority. A scar that suddenly grows, bleeds or breaks down should be checked promptly.
Stretch marks and burns
Stretch marks and burn scars
Stretch marks are a form of scarring deep in the skin, where collagen and elastic fibres have been overstretched and broken. A systematic review found that creams and oils appear to lack effect in preventing them, while light and laser treatments improved their appearance, though high-quality trials are few. Newer red or purple marks tend to respond more readily than old white ones. RF microneedling and fractional laser are medical options at IN Eternity Clinic; at SkinRev Lab, SKINTIGHT microplasma (S$588 per zone before GST) can refine the surface texture of shallower marks.
A fresh burn needs first aid and medical care, not scar treatment: cool it under cool running water for 20 minutes, and see a GP or emergency department for large, deep or blistering burns, burns on the face, hands, feet, genitals or over joints, burns in children, and chemical or electrical burns. Burn scars can thicken and tighten over months, and tight scars over joints can limit movement. They are managed by a doctor or burns team with pressure garments, silicone, therapy, laser and sometimes surgery, so do not take a burn scar to a beauty centre.
Doctor-led option
4D Scar Reconstruction: Dr Sin Yong's combined acne scar protocol
4D Scar Reconstruction is one of Dr Sin Yong's signature protocols, performed by him at IN Eternity Clinic for depressed acne scars. Each scar is assessed and matched to what is wrong with it: subcision releases tethered rolling scars, TCA CROSS treats narrow, deep scars, fractional CO2 laser (the DEKA Tetra Pro S3 approach) works on surfaces and edges, and a filler or collagen-stimulating injectable supports areas that have lost volume. Not everyone needs all four.
Sequencing matters: subcision is done before laser, and sessions are spaced weeks apart so the skin can heal and remodel. Plan for about one to two weeks of social downtime after a session; crusting usually settles by about a week, and bruising from subcision can take up to two weeks to fade. It is not for active acne, raised hypertrophic scars or keloids, which are planned differently. Pricing is given at consultation.
Expectations
Honest expectations: sessions, downtime and PIH
Downtime depends on the method: a few days of redness after RF microneedling or non-ablative laser, about a week of crusting after fractional CO2 laser or TCA CROSS, and up to two weeks of bruising after subcision. Results vary between people, and a doctor should tell you what change is realistic for your scars before you start.
- Expect improvement, not erasure: a flatter, smoother, less visible scar in normal light.
- Most plans need several sessions spaced weeks apart, and collagen keeps remodelling for months after the last one.
- Control active acne first; scars cannot be rebuilt while new ones are forming.
- Tell the doctor if you have recently taken oral isotretinoin; procedure timing is reviewed individually.
- Exfoliating acids, scrubs and retinoids are usually stopped about a week before resurfacing.
- In Asian skin, temporary darkening (PIH) is the main risk, so settings are cautious and sun protection afterwards is strict.
- Photos taken in the same light before each session make progress easier to judge.
Where to go
Scar treatment in our network
Scar treatment is medical. At IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, beside Orchard MRT, Dr Sin Yong maps scars by type and plans subcision, TCA CROSS, fractional CO2 laser, RF microneedling, the Luminescence Laser or the combined 4D Scar Reconstruction, priced at consultation by the clinic; WhatsApp +65 8815 3008. Keloids and large burn scars may need a combined plan or referral, which he will explain.
SkinRev Lab, at #B1-28 CityLink Mall by City Hall MRT, is a non-invasive centre and does not treat the structure of scars. SKINTIGHT (Alma PrimeX microplasma, S$588 per zone before GST) can refine surface texture and shallow marks; its scar setting leaves pinpoint scabbing for a few days. It does not lift deep pits, release tethered scars or flatten keloids. See a doctor first about any scar that grows, bleeds, breaks down or limits movement.
Sources
References & sources
- Jacob CI, Dover JS, Kaminer MS. Acne scarring: a classification system and review of treatment options. J Am Acad Dermatol. 2001;45(1):109-117.
- Pour Mohammad A, Ghassemi M. Varicella-zoster scar treatments: a tertiary review. Med J Islam Repub Iran. 2021;35:136.
- Ou Y, An G, Liang J, et al. Laser, microneedling, and combination therapies for moderate to severe acne atrophic scars: a systematic review and network meta-analysis. Aesthetic Plast Surg. 2026;50(17):7308-7334.
- Ogawa R, Akita S, Akaishi S, et al. Diagnosis and treatment of keloids and hypertrophic scars: Japan Scar Workshop consensus document 2018. Burns Trauma. 2019;7:39.
- Gold MH, McGuire M, Mustoe TA, et al. Updated international clinical recommendations on scar management: part 2. Algorithms for scar prevention and treatment. Dermatol Surg. 2014;40(8):825-831.
- O'Brien L, Jones DJ. Silicone gel sheeting for preventing and treating hypertrophic and keloid scars. Cochrane Database Syst Rev. 2013;(9):CD003826.
- Al-Himdani S, Ud-Din S, Gilmore S, Bayat A. Striae distensae: a comprehensive review and evidence-based evaluation of prophylaxis and treatment. Br J Dermatol. 2014;170(3):527-547.
Common questions
Your questions,
answered
Can scars be removed completely?
No. Scar tissue is structurally different from normal skin, so no treatment returns it to how it was. Treatment can make a scar flatter, smoother, softer and closer in colour, often enough that it is much less noticeable. Be wary of any promise of complete removal.
What treatment works for atrophic scars?
It depends on the shape. Rolling scars respond mainly to subcision, ice pick and deep boxcar scars to TCA CROSS or punch techniques, and shallow boxcar scars and texture to fractional laser or RF microneedling. Studies suggest combining methods works better than any single one.
How do you remove chickenpox scars?
Chickenpox scars are usually a few round, deep pits, so they suit focused treatment. Chemical peeling with TCA is the method used most often in studies, and doctors also place TCA into individual pits (TCA CROSS) or use punch excision, subcision and fractional laser. Several sessions are usually needed, and the aim is improvement rather than erasure.
How much does scar removal cost in Singapore?
It depends on the type, size and number of scars and which methods are needed. At IN Eternity Clinic, scar treatment, including 4D Scar Reconstruction, is priced at consultation by the clinic. At SkinRev Lab, SKINTIGHT for surface texture is S$588 per zone before GST.
Do scar creams and silicone gel work?
Silicone gel or sheets can help raised scars become flatter and less red, although the research is of limited quality. Creams and oils have not been shown to prevent stretch marks, and no cream lifts a sunken acne or chickenpox scar.
Is it a keloid or a hypertrophic scar?
A hypertrophic scar is raised but stays within the line of the original wound and often softens over a year or two. A keloid spreads beyond the wound edge and can keep growing. Both can itch, so a doctor should examine it to tell them apart.
How soon after surgery can I treat a scar?
Basic scar care such as sun protection starts once the wound has closed. Laser can be considered once healing is complete, and studies have tested starting within the first three months. Older scars can still be treated years later.
Can old scars be treated?
Yes. Old acne, chickenpox, surgical and injury scars can still improve with resurfacing, subcision, TCA CROSS or RF microneedling, though settled scars usually need more sessions. Old white stretch marks are slower to respond than newer red ones.
Is laser scar treatment safe for Asian skin?
It can be, with care. Asian skin is more prone to temporary darkening after heat-based treatments, so settings are cautious, the skin may be prepared beforehand, and sun protection afterwards is strict. RF microneedling or non-ablative laser may be preferred in some cases.