True acne scars involve permanent structural changes to the dermal collagen framework — they do not fade with time alone. Professional collagen remodelling treatment can achieve 50–70% improvement in scar appearance. At Lady’s Beauty Care we use Dermapen 4 microneedling combined with EXXO exosome therapy for comprehensive scar revision. Active acne must be controlled before starting treatment.
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Scars vs Post-Inflammatory Hyperpigmentation
Many people treat PIH as if it were scarring, or vice versa. They require different approaches.
Critical distinction
Post-inflammatory hyperpigmentation (PIH): Flat discoloured marks — red, brown, or purple — with no texture change. Caused by melanin overproduction during healing. Will fade over 6–18 months with consistent SPF 50+ and brightening homecare. Not true scars.
True acne scars: Textural changes — depressions, pits, or raised tissue. Caused by collagen framework damage during severe inflammatory acne. Permanent without professional intervention. Will not fade with time alone.
Many clients have both simultaneously. During consultation we identify which concerns are structural scars and which are PIH, as treatment targets each differently.
Types of Acne Scars
Ice pick scars
Appearance: Deep, narrow pits (<2mm wide) with steep V-shaped walls extending into the dermis. Often create an “orange peel” appearance when multiple are present.
Treatment: Most challenging atrophic scar type. Requires aggressive depths (2.0–3.0mm). Deep ice picks may benefit from TCA CROSS (chemical reconstruction of scar tissue) prior to microneedling.
Expected improvement: 40–60% with comprehensive treatment over 8–12 sessions.
Boxcar scars
Appearance: Broad rectangular or oval depressions with sharply defined vertical edges. U-shaped cross-section. Width 1.5–4mm; depth shallow (0.1–0.5mm) or deep (>0.5mm).
Why they respond well: The broader U-shaped base allows collagen to deposit progressively from the bottom upward, literally filling the depression across successive sessions.
Expected improvement: 60–75% for shallow boxcars; 50–65% for deep. Results are progressive and measurable between sessions.
Rolling scars
Appearance: Wave-like, undulating surface with gradual sloping edges (not sharply defined). Wider than other types (4–5mm+). Become less visible when skin is stretched — this is diagnostic for tethering.
Mechanism: Rolling scars are caused by fibrous bands anchoring the dermis downward to subcutaneous tissue. Deep microneedling (2.0–2.5mm) mechanically disrupts these bands, allowing the skin to “balloon” back upward. This is why rolling scars often show the most dramatic single-session improvement.
Expected improvement: 65–80% — typically the best outcomes of any atrophic scar type.
Hypertrophic and keloid scars
Appearance: Raised, firm, thickened scars above the skin surface. Hypertrophic scars stay within the original lesion boundary; keloids extend beyond it.
Important: Standard microneedling is contraindicated for keloid scars and may worsen them. If you have a history of keloid formation, disclose this at consultation. These require steroid injections, silicone sheeting, or specialist referral — not collagen induction therapy.
Treatment Options
Dermapen 4 Microneedling — Primary Treatment
16 surgical-grade needles create thousands of precisely controlled micro-channels at depths of 0.25–3.0mm. These controlled micro-injuries trigger the wound healing cascade — releasing TGF-beta, PDGF, and VEGF that signal fibroblasts to produce new Type III collagen. Over 3–6 months, Type III matures into organised Type I collagen, physically elevating atrophic scars from below.
Depth selection by scar type
- Surface PIH / texture: 0.5–1.0mm
- Shallow boxcar: 1.0–1.5mm
- Moderate rolling / deep boxcar: 1.5–2.0mm
- Deep ice pick / severe scarring: 2.0–3.0mm
Why home dermarollers don’t work for scars
Consumer devices are capped at 0.25–0.5mm — they reach only the superficial epidermis. True acne scars exist in the mid-to-deep dermis (1.0–3.0mm). Surface rolling cannot reach scar tissue, trigger meaningful collagen remodelling, or release tethering bands. It improves product absorption and surface texture — not structural scarring.
Full guide: Dermapen 4 Microneedling Adelaide · Dermapen 4 Blog: Benefits & How It Works
EXXO Exosome Therapy — Regenerative Enhancement
EXXO BLESKIN exosomes are applied immediately after microneedling while channels remain open, delivering regenerative actives directly to the dermis. The exosomes carry microRNA and growth factors that signal fibroblasts to produce more organised collagen — addressing not just quantity but quality of the repair response. Key additions over microneedling alone: amplified collagen output, faster healing (downtime typically 2–3 days vs 4–5), reduced PIH risk through anti-inflammatory action, and improved collagen organisation in the remodelling phase.
Recommended for: moderate to severe scarring, Fitzpatrick IV–VI skin, older established scars (>5 years), and anyone wanting to maximise results per session.
Full guide: Exosome Therapy Adelaide
Chemical Peels — Complementary Treatment
Scheduled 2–3 weeks post-needling as a collagen booster. Glycolic acid (20–50%) accelerates epidermal turnover and fades PIH. Salicylic acid (20–30%) is preferred if occasional breakouts are still occurring. TCA (15–25%) for more significant texture concerns; TCA CROSS technique for targeted ice pick scar treatment. Full guide: Chemical Peels Adelaide
LED Light Therapy — Recovery Support
Red and near-infrared LED applied immediately post-microneedling reduces inflammation, accelerates healing, and complements the collagen induction effect. Can also be used as standalone sessions 1–2 times weekly between microneedling appointments to maintain healing momentum.
Protocol & Timeline
Active treatment course
- Sessions: 6–8 minimum; severe scarring may require 10–12+
- Spacing: 4–6 weeks between sessions (allows full collagen remodelling cycle)
- Session time: 60–90 minutes including numbing, treatment, and post-care
- Passes per scar area: 4–6 (vs 2–3 for general rejuvenation)
- Between sessions: Optional chemical peel at 2–3 weeks; LED 1–2x weekly
Results timeline
- Sessions 1–2: Improved texture, healthy glow, pore size reduction — scars not yet significantly changed
- Sessions 3–4: Visible reduction in shallow rolling and boxcar scars; overall texture significantly smoother
- Sessions 6–8: 50–70% improvement in most scar types; ice picks visibly shallower
- 3 months post-final session: Collagen continues remodelling and maturing
- 6 months post-final session: Maximum results achieved
Suitability & Contraindications
Acne scar treatment works best for:
- Atrophic scars (ice pick, boxcar, rolling) — these respond to collagen induction
- All Fitzpatrick skin types I–VI — microneedling is one of the safest scar treatments for darker skin because it does not target melanin
- Controlled acne — minimal active inflammatory lesions
- Clients committed to completing 6–8+ sessions and daily SPF 50+
Do not treat if you have:
- Active inflammatory acne in the treatment area — control breakouts first
- Active cold sore, bacterial/fungal infection, or open wounds in the treatment area
- Pregnancy or breastfeeding
- Isotretinoin (Accutane) use within the past 6 months
- Personal or family history of keloid formation
- Blood clotting disorders or anticoagulant medication
- Immunosuppression — HIV, chemotherapy, uncontrolled diabetes
- Active skin cancer or undiagnosed lesions requiring dermatologist clearance
Aftercare
Post-treatment timeline
Treatment day: Mild to moderate redness and warmth. Leave provided serum on skin — do not wash off. No makeup, no other products, no sun exposure.
Day 1: Redness persists. Gentle fragrance-free cleanser only. Apply provided healing serum.
Days 2–3: Redness fading, skin may feel tight. Add hyaluronic acid serum, ceramide moisturiser, and SPF 50+ mineral sunscreen for outdoor exposure. Light mineral makeup acceptable if needed.
Days 3–7: Light flaking as skin renews — do not pick or peel. Add a gentle antioxidant (Vitamin C, niacinamide). Still avoid retinoids, AHAs/BHAs, and physical exfoliation.
Week 2+: Gradually reintroduce actives. Continue strict daily SPF 50+ throughout the entire treatment course.
Critical avoids post-treatment:
- No sun exposure — UV during healing significantly increases PIH risk
- No picking or peeling — disrupts healing, causes new scarring
- No swimming (chlorine/bacteria) for 48–72 hours
- No intense exercise or heavy sweating for 24–48 hours
- No sauna or steam for 72 hours
- No retinoids, acids, or benzoyl peroxide for 7 days
Realistic Expectations
What treatment achieves
- 50–70% reduction in scar depth and visibility (evidence-based average)
- Significantly smoother overall texture and tone
- Progressive filling of atrophic depressions from below
- Improved skin quality beyond the scars themselves
What treatment cannot do
- Completely erase scars — significant improvement, not perfection
- Produce results in 1–2 sessions — scar remodelling is a slow biological process
- Treat keloid or hypertrophic scars with standard microneedling
- Prevent new acne from forming new scars — ongoing acne management is required in parallel
Factors that affect your outcome
Scar type (rolling responds best; ice pick least), scar depth, skin type, age, smoking status, sun protection compliance, number of sessions completed, and homecare adherence all influence final results. A consultation maps out realistic expectations for your specific scarring pattern.
Frequently Asked Questions
How many sessions will I need?
A minimum of 6–8 for significant improvement. Deeper or more extensive scarring may need 10–12+. Each session builds on the previous collagen wave — cumulative remodelling is why the number matters. We assess progress every 3–4 sessions and adjust depth and passes accordingly.
Does it hurt?
Topical numbing cream is applied 30–45 minutes before treatment. With numbing: vibration, mild pressure, occasional prickling — typically 2–4/10. Scar tissue itself often has reduced sensation. Mild sunburn sensation for 4–6 hours post-treatment. Very deep depths (2.5–3.0mm) may be slightly more noticeable despite numbing, but remain tolerable.
Can I treat scars if I still get occasional breakouts?
Occasional small, non-inflammatory pimples are acceptable — we work around them. Active cystic or nodular acne in the treatment area is a contraindication. Treating over active inflammation can spread bacteria, create new scarring, and impair healing. We will postpone if needed and focus on getting acne under control first.
Is microneedling safe for darker skin?
Yes — microneedling is one of the safest scar treatments for Fitzpatrick IV–VI skin. Unlike lasers, it does not target melanin, so there is no risk of burns or hypopigmentation. PIH risk is present (heightened in darker skin) but is managed through conservative depths, EXXO exosomes to reduce inflammation, and strict SPF 50+ throughout. Clinical evidence confirms high efficacy for atrophic scarring across all Fitzpatrick types.
Why not laser instead?
Ablative laser can be effective for severe scarring on fair skin, but it carries higher PIH risk, longer downtime (7–14+ days), hypopigmentation risk in darker skin types, and significantly higher cost. Microneedling produces comparable results for most atrophic scar types with a substantially lower risk profile, shorter downtime, and year-round treatability. For very severe scarring on Fitzpatrick I–II, laser may be worth discussing with a dermatologist as an option — but for most Adelaide clients microneedling is the more practical and equally effective pathway.
How long until I see results?
Sessions 1–2: improved glow and texture; scars not yet significantly changed. Sessions 3–4: visible improvement in shallow scars. Sessions 6–8: significant depth reduction across most scar types. Results continue improving for 3–6 months after your final session as collagen matures from Type III to organised Type I. The full result is not visible until 6 months post-treatment.
Book Your Acne Scar Consultation
A detailed scar assessment, skin-type evaluation, and a realistic, personalised treatment plan. Women-only clinic, Northfield SA.
- Dermapen 4 Microneedling Adelaide: Service
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- Exosome Therapy Adelaide: Complete Guide
- Skin Needling Adelaide: Complete Guide
- Chemical Peels Adelaide
- Adult Acne Treatment Adelaide
Medical Disclaimer
For educational purposes only and not medical advice. Individual results vary significantly depending on scar type, depth, skin type, and adherence to protocols. Improvement statistics represent evidence-based averages; very deep ice pick scars may show more modest improvement. A professional consultation is required before treatment.
