Doctor-Led Acne Scar Assessment

Acne Scar Treatment Singapore

Acne scars are not all the same. Rolling scars may be tethered beneath the skin, boxcar scars have defined edges, and ice-pick scars form narrow, deep tracts.

Treatment should therefore be selected by scar type, depth and skin response, not by choosing one laser for every scar.

Acne Scar Treatment Singapore

Medically reviewed by Dr Vijay Sampath, M.B.B.S, M.S (Gen Surg), DNB (Gen Surg), MRCS (Edinburgh), Royal College of Surgeons – Edinburgh (MRCSEd) Medical review: 7 August 2026 Last updated: August 2026

What Patients Should Know First

The starting treatment should match the structure of the scar—not simply use the strongest available laser.

Tethered rolling scars often need subcision-led planning. Deep ice-pick scars may need TCA CROSS or a punch procedure. Boxcar scars may be considered for fractional CO₂ laser, RF microneedling or focal procedures depending on their depth and edges.

If inflammatory acne, cysts or infection remain active across the treatment area, control may take priority before intensive scar treatment.

Clinical Perspective

Why Scar Type Matters More Than Choosing One “Best” Treatment

Acne scars are structural changes at different depths of the skin. A surface-resurfacing treatment may improve texture, but it cannot reliably release a rolling scar that remains tethered underneath. Similarly, broad resurfacing alone may not adequately reach a deep, narrow ice-pick scar.

I first look at the dominant scar type, depth, edge definition and tethering. I also assess active acne, pigmentation risk, previous treatment response and how much downtime the patient can accommodate. The treatment sequence is then planned around the scar feature that is most limiting improvement.

For mixed scars, this may mean releasing tethered areas first, treating deep focal scars separately and performing resurfacing or collagen-remodelling treatment at a later stage.

— Dr Vijay Sampath

Quick Answers

Acne Scar Treatment at a Glance

Answers to common questions about acne scar treatment options, suitability, downtime, results, treatment sessions and prices in Singapore.

Are acne scars and acne marks the same?

No. Acne scars change the skin’s texture; PIE and PIH are flat red or brown marks. They may occur together but usually need different treatments.

What usually treats rolling scars?

Tethered rolling scars often need subcision to release fibrous bands. Resurfacing or filler may be added later if suitable.

What usually treats ice-pick scars?

Selected ice-pick scars may be treated with TCA CROSS or a punch procedure because their narrow tracts are deeper than the surrounding surface.

What usually treats boxcar scars?

Shallower boxcar scars may respond to fractional CO₂ laser or RF microneedling. Deep, sharply edged scars may need a focal procedure first.

Do different acne scar types require different treatments?

Usually, yes. Rolling, boxcar and ice-pick scars have different structural features, so they may respond to different procedures. Mixed acne scarring may require a combination or staged treatment plan after assessment.

How much does treatment cost?

Fractional CO₂ laser starts from S$398 before GST. Other options and combination plans have different prices depending on the scar pattern and treatment selected.

What Is It?

What Are Acne Scars?

Acne scars form when inflammation damages skin tissue and the healing process produces too little or too much collagen.

Depressed scars are called atrophic scars and include rolling, boxcar and ice-pick scars. Excess collagen can produce raised hypertrophic or keloid scars.

Scar type matters because the visible depression may be caused by tethering, tissue loss, defined edges or a deep narrow tract. These structural differences do not respond equally to the same procedure.

Acne Scars, Acne Marks and Enlarged Pores Are Different

A true acne scar changes the skin’s structure and remains depressed or raised when colour is ignored. Post-inflammatory erythema (PIE) is flat and red or pink; post-inflammatory hyperpigmentation (PIH) is flat and brown or grey-brown. Enlarged pores are openings in the skin rather than individual scar depressions.

These concerns may appear together. Treating colour alone will not release a tethered scar, while intensive scar resurfacing may be unnecessary for a flat acne mark.

Causes

Why Does Acne Leave Scars?

Acne scarring is more likely when inflammation extends deeper into the skin and damages supporting tissue. Nodules and cysts carry a higher risk, but persistent or repeatedly injured smaller lesions may also scar.

Risk can be influenced by:

  • the severity and duration of inflammatory acne
  • delayed or inconsistent acne control
  • squeezing, picking or repeatedly irritating lesions
  • individual collagen production and healing response
  • a personal or family tendency to raised scars or keloids
  • the location of the acne, including the face, chest, shoulders and back

Scarring can still occur despite appropriate care, particularly after deep inflammation.

Why Does Acne Leave Scars?
Benefits

What Acne Scar Treatment Aims to Improve

Depending on the scar pattern, treatment may aim to:

  • release selected tethered rolling scars
  • make depressed scars shallower
  • soften sharply defined scar edges
  • reduce shadowing across uneven skin
  • improve broader texture and enlarged pores
  • address residual redness or pigmentation separately

The goal is visible improvement, not guaranteed complete removal or perfectly smooth skin.

What Acne Scar Treatment Aims to Improve
Types

Types of Acne Scars and Post-Acne Marks

Acne scars do not all look the same. Identifying the scar type is important because rolling, boxcar, and ice pick scars usually respond to different treatments. Many patients also have mixed acne scars, which is why a tailored plan is often needed.

Post-inflammatory hyperpigmentation or erythema may also appear after acne heals. These dark marks or areas of redness are common after inflammation, but they are not true scars and may improve with time or appropriate treatment.

Rolling Scars

Rolling Scars

Broad, wave-like depressions with sloping edges. Some are tethered by fibrous bands beneath the skin and may flatten partly when the surrounding skin is stretched.

Boxcar Scars

Boxcar Scars

Round or oval depressions with more defined edges. Shallow scars may respond to resurfacing; deeper scars may need a focal procedure or structural support.

Ice Pick Scars

Ice Pick Scars

Narrow openings that extend deeply into the skin. Their depth makes surface resurfacing alone less predictable, so focal treatment may be considered.

Mixed Acne Scars

Mixed Acne Scars

Many patients have a combination of rolling, boxcar, and ice pick scars. Mixed scars often need a combination treatment plan.

Hypertrophic or Keloid Scars

Hypertrophic or Keloid Scars

Raised scars caused by excess collagen. They require a different assessment from depressed scars and should not automatically receive resurfacing treatment.

Red Post-Acne Marks (PIE)

Red Post-Acne Marks (PIE)

Flat red or pink marks caused by vascular changes after inflammation. They change colour but do not create a depression.

Doctor-Led Assessment

How Is an Acne Scar Treatment Plan Chosen?

A doctor may assess:

  • whether the concern is a true acne scar, post-acne mark or enlarged pore
  • the dominant scar type, depth and distribution
  • whether rolling scars are tethered beneath the skin
  • whether active acne should be controlled first
  • skin tone and previous post-inflammatory pigmentation
  • any tendency towards keloids or raised scars
  • healing history and previous procedures
  • current medication, acceptable downtime and treatment priorities

The first procedure should address the feature most likely to limit improvement. For example, significant tethering may need attention before broader resurfacing.

Best by Type

How Treatment Direction May Differ

The most suitable acne scar treatment usually depends on the type of scar present. Rolling, boxcar, and ice pick scars often behave differently, which is why treatment selection is commonly based on scar pattern rather than one fixed treatment for every patient.

Scar pattern Defining feature Possible starting direction Why more than one treatment may be needed
Tethered rolling scars Broad depressions anchored beneath the skin Subcision-led planning Resurfacing or filler may later improve remaining texture or volume loss
Shallow boxcar scars Defined depressions with relatively shallow bases Fractional CO₂ laser or RF microneedling Deeper individual scars may still need focal treatment
Deep boxcar scars Sharply edged, deeper depressions Focal procedure, selected subcision, TCA CROSS, punch technique or filler depending on structure Broader resurfacing may be used later to blend surrounding texture
Ice-pick scars Narrow openings with deep tracts TCA CROSS or selected punch procedure Resurfacing may later blend the treated area
Raised scars Firm tissue elevated above the skin Separate raised-scar assessment Depressed-scar resurfacing is not the appropriate default
PIE or PIH Flat red, pink, brown or grey-brown marks Vascular or pigmentation-led treatment after assessment Any accompanying structural scars must be treated separately
Mixed scars Several scar depths and patterns Staged combination plan One method is unlikely to correct every component equally
Treatment Options

Acne Scar Treatment Options

Different procedures work at different depths. Selection should follow examination of the scar structure, active acne, skin tone, pigmentation risk, healing history and acceptable downtime.

Fractional CO2 Laser

Fractional CO2 Laser

Creates controlled microscopic treatment zones to resurface texture and stimulate collagen remodelling. It does not reliably release every deep tether or narrow tract.

Shallow-to-moderate boxcar scars and broader uneven texture Commonly about 5–7 days of visible redness, dryness or crusting; redness may last longer
RF Microneedling

RF Microneedling

Delivers radiofrequency energy through microneedles at selected depths to support collagen remodelling with less surface ablation than CO₂ laser.

Boxcar scars, textural irregularity and enlarged pores Commonly about 1–3 days of redness or swelling
Subcision

Subcision

A needle or cannula is used beneath the skin to release fibrous bands that tether selected depressed scars.

Rolling and tethered scars Bruising and swelling may occur
TCA CROSS

TCA CROSS

A high-concentration acid is applied precisely inside selected scar openings to create controlled focal remodelling.

Ice-pick scars and some narrow or sharply defined scars Small white spots followed by crusting; visible recovery commonly about 5–7 days
Polynucleotide S

Polynucleotide S

Injectable polynucleotides may be considered as an adjunct to support skin quality and healing; they do not mechanically release tethered scars.

Patients needing adjunctive skin-quality support Swelling, small bumps or bruising usually about 1–3 days
Combination Treatment Plans

Combination Treatment Plans

Procedures are sequenced according to scar type, response and healing rather than applying every treatment at once.

Mixed rolling, boxcar, ice-pick scars and post-acne marks Depends on the procedures and whether they are staged
Punch Excision / Surgery

Punch Excision / Surgery

Punch procedures may be considered for selected deep, well-defined scars that require a more targeted surgical approach.

A selected deep scar is excised, elevated or grafted under local anaesthetic depending on its structure. Procedure-dependent; dressing or sutures may be required
Chemical Peel

Chemical Peel

A controlled chemical solution exfoliates selected surface layers. Peel depth and suitability must be assessed carefully.

Superficial pigmentation, selected shallow texture and active-acne support—not deep tethered scars Tightness, dryness and peeling commonly about 3–7 days depending on peel depth
Dermal Fillers

Dermal Fillers

Filler may support selected depressions after tethering has been assessed or released. It is not appropriate for every scar or area.

Selected volume-deficient or depressed scars Swelling, tenderness or bruising commonly about 1–3 days; bruising may last longer
Pricing

Acne Scar Treatment Prices in Singapore

Prices vary because different scar structures require different procedures. The figures below are starting prices per session or treatment and are subject to GST.

Treatment Starting price Commonly considered for
Fractional CO₂ Laser From S$398 Selected boxcar scars and broader uneven texture
Polynucleotide S From S$500 Selected boxcar scars, shallow rolling scars and scar support
Secret RF Microneedling From S$680 Selected acne scars, texture and enlarged pores
Subcision From S$400 Tethered rolling scars
TCA CROSS From S$400 Selected ice-pick and narrow deep scars
Chemical Peel From S$368 Selected post-acne marks and mild texture concerns
Dermal Filler Contact clinic Selected depressions requiring structural support
Punch Procedure Contact clinic Selected individual deep scars
Combination Plan From S$798 Mixed scars requiring more than one treatment method

The final plan and total cost depend on scar type, number of treatment areas, procedure settings and whether treatments are staged or combined.

Downtime

Recovery and Downtime by Acne Scar Treatment

Downtime may mean redness, crusting, peeling, bruising or simply not wanting to attend a social event. Visible recovery differs substantially by treatment.

Treatment Common visible effects General planning range Important note
Fractional CO₂ Laser Redness, dryness, swelling and pinpoint crusting About 5–7 days Redness can remain visible for longer
RF Microneedling Redness, swelling and possible pinpoint marks About 1–3 days More intensive settings may take longer to settle
Subcision Swelling, tenderness and bruising About 5–7 days Bruising may remain visible for longer
TCA CROSS Temporary white spots followed by localised crusting About 5–7 days Do not pick the crusts
Polynucleotide Injection Small bumps, swelling and possible bruising About 1–3 days Visible bumps commonly settle before bruising
Chemical Peel Tightness, redness, dryness and flaking About 3–7 days depending on peel depth Do not force peeling skin off
Dermal Filler Swelling, tenderness and possible bruising About 1–3 days Bruising may remain visible for longer
Punch Procedure Localised wound healing; dressing or sutures may be required Procedure-dependent Follow the doctor’s wound-care and suture instructions

These are general planning ranges, not guaranteed recovery times. Settings, combined procedures, skin response and aftercare can shorten or extend visible downtime.

Combination Planning

Why Acne Scars Often Need Combination Treatment

Most patients do not have one uniform scar type. Rolling scars may be tethered at a deeper level, boxcar scars create defined depressions, and ice-pick scars form narrow tracts. One procedure may improve one feature while leaving another largely unchanged.

A staged plan may involve:

  • controlling active acne to reduce new scarring
  • releasing tethered rolling scars with subcision
  • treating selected deep focal scars with TCA CROSS or a punch procedure
  • resurfacing broader boxcar scars and uneven texture
  • addressing residual PIE or PIH separately
  • reviewing healing before deciding whether another session is needed

Combination treatment does not necessarily mean performing every procedure on the same day. Staging allows healing and response to guide the next step.

Why Acne Scars Often Need Combination Treatment

Not Sure Which Treatment Matches Your Scars?

Book a doctor-led consultation to assess your scar pattern, treatment options, expected downtime, and a personalised acne scar treatment plan.

Results and Timeline

When Can You See Acne Scar Treatment Results?

Early changes may be visible after swelling and surface healing settle, but collagen remodelling develops gradually. Texture may continue changing over several weeks or months.

Release or support of a selected depression may be noticed earlier than broader textural improvement. Mixed scars may not respond uniformly, and several stages may be needed.

Results should be reviewed after adequate healing rather than immediately after each procedure.

When Can You See Acne Scar Treatment Results?
Realistic Expectations

Acne Scar Treatment Limitations and Long-Term Changes

Complete removal or perfectly smooth skin cannot be guaranteed. Results vary with scar type, depth, age, tethering, location, skin tone, treatment intensity and healing.

Deep ice-pick scars, sharply edged boxcar scars and extensive tethering may require several stages. One procedure may improve one part of a mixed pattern more than another.

Structural improvement may be long-lasting, but ageing, collagen loss and facial-volume changes can make shadows more visible. New acne can create new scars; this is new scarring rather than a treated scar returning.

Should Active Acne Be Controlled Before Scar Treatment?

Active acne and acne scars can sometimes be managed in parallel, but intensive scar treatment should not automatically proceed across inflamed or infected skin.

If inflammatory breakouts are frequent, nodules or cysts are still forming, or acne covers the intended treatment area, stabilising the acne may take priority. Otherwise, new scars may continue forming while older scars are being treated.

The timing also depends on the intended procedure, current medication, infection risk and healing. A doctor should decide whether treatment can proceed, should be modified or should be postponed.

Prevention

How to Reduce the Risk of New Acne Scars

Existing structural scars cannot be removed through prevention, but the risk of new scars may be reduced by:

  • treating persistent inflammatory acne early
  • avoiding squeezing, picking or repeatedly irritating lesions
  • following prescribed acne treatment consistently
  • using suitable sun protection to reduce prolonged post-inflammatory pigmentation
  • seeking assessment for painful nodules, cysts or acne already leaving indentations
  • avoiding aggressive home procedures on active acne or scarred skin
  • following professional aftercare instructions

Scarring can still occur despite good care because inflammation severity and individual healing also matter.

How to Reduce the Risk of New Acne Scars
Side Effects and Risks

Risks, Side Effects and Suitability Considerations

Temporary effects depend on the treatment and may include redness, swelling, tenderness, dryness, peeling, bruising or light crusting. These usually settle as the skin heals.

Less-common risks include infection, prolonged redness, pigmentation changes, delayed healing or additional scarring. The risk of post-inflammatory hyperpigmentation may be higher in darker or pigmentation-prone skin.

Tell the doctor about active acne or infection, recent tanning, keloid tendency, pregnancy, medication and previous skin reactions. Seek medical advice if pain, swelling or redness worsens instead of improving.

Risks, Side Effects and Suitability Considerations
Common Questions

Frequently Asked Questions About Acne Scar Treatment

These are some of the most common questions patients ask about Acne Scar Treatment Singapore, including treatment options, downtime, results, pricing, and doctor-led treatment planning.

Acne scars involve a change in skin texture, such as depressions, raised areas or uneven contours. Acne marks are flat red, pink, brown or grey areas left after inflammation and do not involve the same structural damage. Because they are different concerns, treatments for acne marks may not improve indented or raised acne scars. A doctor can assess whether the concern is scarring, pigmentation, persistent redness or a combination of these.

Not necessarily. Fractional CO₂ laser may improve selected boxcar scars and broader uneven texture, but it cannot reliably release every tethered rolling scar or treat every deep ice-pick scar. Subcision, TCA CROSS, RF microneedling, punch procedures or a staged combination plan may be considered depending on the scar structure.

The starting treatment is usually chosen according to the dominant scar type, depth, edge definition and whether the scar is tethered. The doctor may also consider active acne, skin tone, pigmentation risk, previous treatment response, healing history and acceptable downtime. The first procedure should address the feature most likely to limit improvement.

Sometimes, but it depends on the acne and the intended procedure. Frequent inflamed breakouts, cysts or infection across the treatment area may need to be controlled first. This helps reduce the risk of new scars forming while existing scars are being treated. A doctor should decide whether scar treatment can proceed, should be modified or should be postponed.

Complete removal or perfectly smooth skin cannot be guaranteed. Treatment aims to make selected scars shallower, soften defined edges, release tethering and improve overall texture. The extent of improvement depends on the scar type, depth, age, location, treatment response and healing.

Structural improvement from a successfully treated scar may be long-lasting, although ageing, collagen loss and facial-volume changes can affect how visible it appears over time. New acne can also produce new scars, so controlling ongoing breakouts remains important.

Downtime depends on the procedure. RF microneedling and polynucleotide injections may cause redness, swelling or small bumps for about 1–3 days. Fractional CO₂ laser, TCA CROSS and subcision commonly require around 5–7 days of visible recovery, although redness or bruising may last longer. Punch procedures have procedure-dependent wound healing.

Discomfort varies according to the procedure, treatment depth and individual sensitivity. Patients may experience heat, pressure, pinpricks or temporary stinging. Topical numbing, local anaesthetic or other doctor-directed pain management may be used where appropriate.

Early changes may become visible after swelling and surface healing settle, but collagen remodelling develops gradually over several weeks or months. Results should therefore be assessed after adequate healing rather than immediately after treatment. Mixed scars may improve at different rates.

There is no fixed number for every patient. The number of sessions depends on the scar types, severity, treatment selected, healing response and desired degree of improvement. Mixed or deeper scars commonly require several staged treatments rather than one procedure performed once.

Selected ice-pick scars may be considered for TCA CROSS or a punch procedure because their narrow tracts extend more deeply than the surrounding skin surface. Resurfacing may later be used to blend the surrounding texture, but surface laser treatment alone may not adequately treat every deep tract.

Shallow-to-moderate boxcar scars may be considered for fractional CO₂ laser or RF microneedling. Deeper, sharply edged boxcar scars may need TCA CROSS, a punch procedure, selected subcision or structural support before broader resurfacing. Treatment depends on the depth and shape of each scar.

Tethered rolling scars often require subcision to release fibrous bands beneath the skin. Fractional CO₂ laser, RF microneedling or selected filler treatment may be considered later to improve remaining texture or volume loss. Resurfacing alone may not adequately lift a scar that remains tethered.

Acne scar treatment may be suitable for different skin tones, but the procedure and settings must be selected carefully. Skin tone, pigmentation history and treatment intensity can affect the risk of post-inflammatory hyperpigmentation. Patients who pigment easily may require more conservative settings, preparation or a staged approach.

Consult Our Doctors

Consult Acne Scar Treatment Singapore Doctors

Our doctors assess acne activity, scar type, depth, tethering, pigmentation risk and previous treatment response before recommending a treatment direction.

Dr Daniel Khaw

Dr Daniel Khaw

Aesthetic Doctor
M.B.B.S (Australia), MRC PSYCH (U.K.), Bachelor of Biomedical Science, Certificate in Aesthetic Medicine (American Academy of Aesthetic Medicine)
Dr Justin Goh

Dr Justin Goh

Aesthetic Doctor
MB, BCh, BAO (National University of Ireland), ADEG Certified Aesthetic Physician (Singapore)
Dr Nicole Chan

Dr Nicole Chan

Aesthetic Doctor
MBBS (S’pore), Graduate Diploma in Practical Dermatology, Graduate Diploma in Clinical Dermatology
Dr Vijay Sampath

Dr Vijay Sampath

Aesthetic Doctor
M.B.B.S, M.S (Gen Surg), DNB (Gen Surg), MRCS (Edinburgh), Royal College of Surgeons – Edinburgh (MRCSEd)
Locations

Our Acne Scar Treatment Clinics

Doctor consultations for acne scars are available at our Orchard and Tampines clinics in Singapore.

Orchard Clinic

Bio Aesthetic Laser Clinic Orchard

390 Orchard Road, #03-01
Palais Renaissance, Singapore 238871

View Orchard map

Tampines Clinic

Bio Aesthetic Laser Clinic Tampines

300 Tampines Avenue 5, #04-05
Income @ Tampines Junction, Singapore 529653

View Tampines map

Book an Acne Scar Consultation

Arrange a doctor-led assessment of your acne activity, scar patterns, treatment options, expected downtime and likely treatment sequence.

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    Sources

    Acne Scar Treatment Sources and Medical References

    This page is supported by peer-reviewed literature covering acne-scar classification, subcision, TCA CROSS, resurfacing and combination treatment. References describe general evidence and do not guarantee an individual result.

    1. Connolly D, Vu HL, Mariwalla K, Saedi N. Acne Scarring—Pathogenesis, Evaluation, and Treatment Options. J Clin Aesthet Dermatol. 2017;10(9):12–23. View reference.
    2. Gozali MV, Zhou B. Effective Treatments of Atrophic Acne Scars. J Clin Aesthet Dermatol. 2015;8(5):33–40. View reference.
    3. Krishna S, Keralapura Basavaraj V, Kumar B. Efficacy of Subcision in the Treatment of Postacne Scars. J Cutan Aesthet Surg. 2016;9(2):105–111. View reference.
    4. Abdel Hay R, Shalaby K, Zaher H, et al. Interventions for Acne Scars. Cochrane Database Syst Rev. 2016;(4):CD011946. View reference.
    5. Bhargava S, Cunha PR, Lee J, Kroumpouzos G. Acne Scarring Management: Systematic Review and Evaluation of the Evidence. Am J Clin Dermatol. 2018;19:459–477. View reference.
    6. Fabbrocini G, Annunziata MC, D’Arco V, et al. Acne Scars: Pathogenesis, Classification and Treatment. Dermatol Res Pract. 2010:893080. View reference.
    7. Goodman GJ, Baron JA. Postacne Scarring: A Qualitative Global Scarring Grading System. Dermatol Surg. 2006;32(12):1458–1466. View reference.
    8. Lanoue J, Goldenberg G. Acne Scarring: A Review of Cosmetic Therapies. Cutis. 2015;95(5):276–281. View reference.

    This page is provided for general educational purposes and should not be relied on as personal medical advice. Suitability for acne scar treatment should be assessed during a consultation with a qualified doctor.