Removing acne scars: laser, microneedling and TCA peel compared

Acne scars are the most common reason for seeing a dermatologist between the ages of 25-35. The good news: in 2026 most scar types can be reduced by 60-80% — but choosing the right technology is the foundation.

Types of acne scars

Atrophic scars (depressions)

1. 1Ice-pick — narrow, deep (like punctures)
2. 2Boxcar — box-shaped, deep and wide
3. 3Rolling — wavy, wide

Hypertrophic scars (raised)

• Keloid
• Raised redness

The technologies compared

1. Fractional CO2 laser (the gold standard)

How does it work? The laser creates microscopic micro-incisions in the skin — the surrounding tissue stays healthy and healing is fast.

Which scars does it suit?

• Boxcar ✅
• Rolling ✅
• Ice-pick ⚠️ (moderate result)
• Hypertrophic ❌

Number of sessions: 3-5 (8 week intervals) Recovery: 5-7 days of redness, 2-3 weeks of peeling Result: 60-70% improvement

2. Microneedling (RF microneedling)

How does it work? Many micro-needles enter the skin and RF (radio frequency) heats the tissue — collagen production is stimulated.

Which scars does it suit?

• Rolling ✅
• Boxcar ✅
• Ice-pick ❌
• Evens out tone ✅

Number of sessions: 4-6 (4 week intervals) Recovery: 24-48 hours of redness Result: 40-60% improvement

3. TCA CROSS (chemical peel)

How does it work? Trichloroacetic acid (TCA) at a high concentration (70-100%) is applied into the scar depression with a micropipette — only the scar peels.

Which scars does it suit?

• Ice-pick ✅✅ (the primary choice)
• Boxcar ⚠️ (partly)
• Rolling ❌
• Hypertrophic ❌

Number of sessions: 2-4 (3 month intervals) Recovery: 7-10 days of crusting Result: 50-70% improvement (for ice-pick)

4. Subcision (surgical)

How does it work? A micro-needle beneath the skin cuts the strands holding the scar down — the scar rises to skin level.

Which scars does it suit?

• Rolling ✅✅
• Boxcar ⚠️
• Ice-pick ❌

Number of sessions: 1-3 Recovery: 7-10 days of bruising Result: 50-60% improvement (for rolling)

5. Filler (a temporary solution)

How does it work? Hyaluronic acid is injected beneath the scar — the scar rises to skin level.

Which scars does it suit?

• A single depression ✅
• Scattered scars ❌

Duration: 9-12 months

How to choose? A decision tree

For a real result:

Acne scars are not a one-season problem. The following plan is recommended:

1. 1A consultation (a dermatologist and an aesthetic surgeon)
2. 2A 6 month plan — combining 3-4 different techniques
3. 3SPF and retinol (daily anti-ageing care)
4. 4Being patient — the final result comes after 12 months

Misconceptions

• "Acne scars can be erased completely" — no, they are reduced by 80%
• "One session is enough" — a minimum of 3 sessions
• "A home device does the same as a laser" — professional devices are far more powerful