By RN Laurisa Ibrahim, Founder of Injxu Face + Skin
If you've been researching what to do about acne scarring, you've almost certainly landed on the same two recommendations every other patient lands on: skin needling and laser. Both are clinically validated, both can produce meaningful improvement, and both are widely available across Sydney. So how do you choose?
The honest answer is that it depends — on the type of scarring you have, your skin type, your tolerance for downtime, your budget, your timeline, and your skin's history. Most of the patients I see in consultation at Injxu Face + Skin in Gladesville benefit from a thoughtful combination of both modalities, sequenced over a number of months, rather than choosing one or the other.
This guide breaks down what each treatment actually does, where each shines, and what to look for in your own decision — so when you come in for a consultation, you can ask the right questions and arrive at the right plan for your skin.
First, understand your acne scarring
The phrase "acne scarring" is a catch-all that bundles together several distinct skin conditions, each of which responds differently to treatment. Before you compare modalities, you need to understand what type of scarring you actually have.
- Atrophic scars — depressed scars where tissue has been lost. The three main sub-types are ice-pick (narrow and deep), boxcar (broader, with sharp edges), and rolling (broad, soft, undulating).
- Hypertrophic and keloid scars — raised scars where excess collagen has formed. Less common from acne but more common in higher Fitzpatrick skin types.
- Post-inflammatory hyperpigmentation (PIH) — flat dark marks left behind by acne, more pronounced on olive and deeper skin. Strictly speaking this isn't scarring; it's pigmentation. We treat it differently. (We've covered this in detail in a separate post.)
- Post-inflammatory erythema (PIE) — flat red or purple marks left by acne. More common on fair skin. Often improves with time and vascular-targeted treatments.
Skin needling and laser both address atrophic scarring well. Neither is the primary treatment for raised scars or for pigmentation specifically — those are different conversations.
What skin needling actually does
Skin needling, also called microneedling, uses an array of fine medical-grade needles to create thousands of tiny, controlled micro-channels in the skin. Each channel triggers a coordinated wound-healing response: new collagen, new elastin, and remodelling of existing scar tissue. Repeated over a course of sessions, this gradually softens and flattens atrophic acne scars.
At Injxu we use the Dermapen 4, a medical-grade automated device with sterile single-use tips and adjustable needle depths. Adjustable depth matters enormously: a treatment depth that's right for fine textural irregularities is different from the depth needed for deeper boxcar scars, and the depth needs to be safe for your Fitzpatrick skin type.
Where skin needling excels
- Rolling scars and soft boxcar scars, where the goal is to remodel the underlying scar architecture.
- Overall skin texture, tone, and pore appearance — the secondary benefits are substantial.
- Olive and deeper skin tones, where laser carries more risk. Needling, performed at appropriate depths, is generally well-tolerated across all Fitzpatrick types.
- Combination protocols — needling pairs well with regenerative actives, including exosome therapy. Exomide, a plant-derived exosome treatment we use at Injxu, has been shown to support collagen response and accelerate post-treatment healing.
- Patients who can accept a course of sessions and visible (but brief) downtime — usually one to three days of redness and slight swelling.
Where skin needling is less effective
- Ice-pick scars — these narrow, deep scars often need a different approach, such as TCA CROSS (a focal chemical peel technique).
- Severely atrophic scars with significant tissue loss, where a single modality is rarely enough.
- Patients seeking rapid results — needling works gradually, with cumulative improvement over a course of three to six sessions, typically spaced four to six weeks apart.
What laser actually does
"Laser" is an umbrella term that covers a wide range of technologies, each working through a different mechanism. For acne scarring, the most commonly considered options fall into two broad categories:
- Ablative lasers (such as fractional CO2 or erbium) — vaporise tiny columns of skin tissue, prompting an aggressive collagen remodelling response. Powerful, but with longer downtime and more risk on darker skin.
- Non-ablative lasers and energy-based platforms — heat the skin from within without removing surface tissue. Less downtime, generally gentler, but typically requires more sessions for comparable results.
At Injxu we use two energy-based devices that are particularly well-suited to acne scarring:
- Cynosure Potenza RF microneedling — combines the micro-channel creation of needling with radiofrequency energy delivered at depth. This delivers controlled heat into the dermis, which stimulates a more intense collagen response than needling alone, with relatively manageable downtime. The Potenza is one of our most-used devices for moderate atrophic scarring.
- Alma Harmony — a multi-technology platform that includes Q-switched laser modules and IPL. The Q-switched laser can also be useful where scarring is combined with pigment irregularity, addressing two concerns within the same protocol.
Where laser excels
- Mixed scar profiles, particularly where rolling and boxcar scars need different depths of treatment.
- Patients wanting a more dramatic single-session response who can accept more downtime.
- Combination concerns — scarring plus pigmentation, scarring plus laxity — where a multi-platform device like Alma Harmony allows us to address several issues in a coordinated plan.
- Fair to medium skin types (Fitzpatrick I–III), where laser parameters carry less risk.
Where laser carries more risk
- Higher Fitzpatrick skin types (IV–VI) require highly experienced operators and very careful parameter selection. Aggressive laser on darker skin can cause post-inflammatory hyperpigmentation — the very thing many patients are trying to avoid.
- Patients with active acne (laser is generally deferred until the skin is clear).
- Patients on photosensitising medications, including some acne medications.
- Patients with melasma — certain laser wavelengths can worsen melasma, so a careful assessment is essential.
Side-by-side: how to think about the choice
Rather than positioning needling and laser as opposites, here's how I tend to frame the decision in consultation:
- If your skin is olive or deeper and you have rolling scars: we usually start with a needling course (often Dermapen 4 with Exomide), establishing a strong response and skin barrier first. Laser, if used at all, comes later and at carefully calibrated settings.
- If you have moderate atrophic scarring and can accept a bit more downtime: Cynosure Potenza RF microneedling is often the right call. You get the channel creation of needling plus the dermal heating of RF, which generally outperforms either alone.
- If you have a mixed presentation of scarring plus pigmentation: Alma Harmony allows us to address both within a coordinated protocol.
- If you have predominantly ice-pick scarring: neither needling nor standard laser is the primary answer — TCA CROSS or punch techniques are usually more appropriate, often in combination with one of the resurfacing modalities.
- If you have active acne: we treat the active acne first. Scar revision begins once the skin is consistently clear.
Downtime, frequency, cost — the practical comparison
| Factor | Skin needling (Dermapen 4) | RF microneedling / laser |
|---|---|---|
| Typical downtime | 1–3 days redness & mild swelling | 3–7 days redness, possibly some peeling |
| Sessions typically needed | 3–6, spaced 4–6 weeks apart | 3–5, spaced 6–8 weeks apart |
| Suitability for darker skin | Generally safe at appropriate depths | Requires experienced operator; very technique-dependent |
| Best for | Rolling scars, texture, all skin types | Boxcar scars, combination concerns, deeper remodelling |
| Cost per session | Generally lower | Generally higher |
All results vary depending on individual skin type, scarring history, and adherence to protocol.
What we recommend most often at Injxu
For the majority of patients with moderate atrophic acne scarring, a layered protocol over six to twelve months produces the most balanced result. A typical plan might involve a course of skin needling with regenerative actives to establish skin health and address rolling scars, transitioning into RF microneedling for deeper remodelling, with carefully timed pigmentation support if PIH is part of the picture. Topical retinoids and a consistent at-home regimen run in parallel throughout.
None of this is a quick fix. Acne scarring formed over years rarely resolves in weeks. What I can promise is honesty about the timeline, a plan that respects your skin's tolerance, and AHPRA-compliant progress photography (we use Clinical Imaging Systems) so you can objectively track the cumulative changes.
Frequently asked questions
Can acne scarring be fully removed?
Truly atrophic scars cannot be entirely erased — the tissue lost during inflammation is gone. What treatment achieves is meaningful softening, smoothing, and remodelling of the scar architecture, plus improvements in skin tone and texture that reduce how visible the scars are. Most patients describe a substantial improvement when a considered protocol is followed; results vary.
Will I need to keep treating my scars forever?
No. The initial scar revision phase typically runs for six to twelve months, then transitions into a maintenance phase of one to two skin-focused sessions per year alongside a strong home routine. The results from properly remodelled scars are durable.
Is it safe to do needling at home?
Home microneedling rollers are generally too superficial to cause meaningful scar revision and carry hygiene and infection risks if used incorrectly. Medical-grade needling depths required for scarring should only be performed in clinic by trained professionals.
What about combining treatments in the same session?
Some combinations work well together; some shouldn't be stacked. For example, needling and a topical regenerative active are a well-validated combination. Stacking multiple device-based treatments in the same session is rarely advisable and depends entirely on individual skin tolerance. We'll plan sequencing carefully in your consultation.
How long until I see results?
You'll typically notice the first textural improvements within four to six weeks after your first session, with more meaningful scar remodelling becoming visible after the third or fourth session. Full results from a course usually develop over three to six months as collagen continues to mature.
How to choose a clinic for scar revision
A few honest questions to ask before booking anywhere:
- What is your clinician's specific experience with my Fitzpatrick skin type?
- What devices do you use, and are they medical-grade?
- Do you take consistent before-and-after photographs in compliance with AHPRA guidelines?
- How is the treatment plan personalised to my scar type?
- What is the realistic timeline and number of sessions I should expect?
- What is included in the package — consultations, follow-ups, post-care products?
At Injxu Face + Skin we'd rather take you through a thorough, honest consultation than rush you into a protocol that doesn't fit. If you'd like to have your scarring properly assessed and a layered plan built, you're welcome to book a skin consultation.
This article is general information and not medical advice. Individual results vary. A consultation is required to determine treatment suitability.