Acne Scarring — Advanced Treatment Methods That Actually Work

Last updated: 5 March 2026

Medically reviewed by Dr. Priya Chen, MBBS, MRCS, Aesthetic Medicine Specialist
Last updated: February 2026

Acne scarring affects an estimated 95% of people who experience inflammatory acne, according to research published in the Journal of Clinical and Aesthetic Dermatology (2022). For many, the scars persist long after the active acne has resolved, serving as an unwelcome reminder that can impact confidence and quality of life for years.

The good news is that advances in aesthetic medicine have produced a range of highly effective treatments for acne scarring. At Axiom Aesthetics, we regularly help patients transform scarred skin using evidence-based protocols tailored to their specific scar types and skin characteristics.

Understanding Acne Scar Types

Not all acne scars are created equal, and identifying your scar type is essential for choosing the right treatment. The three main categories of atrophic (indented) acne scars are:

Ice Pick Scars

Deep, narrow, pitted scars that extend into the dermis, resembling puncture marks from a sharp instrument. They’re typically less than 2mm in diameter but can be quite deep. Ice pick scars are the most challenging to treat and often require targeted, punch-based techniques.

Boxcar Scars

Wider, round or oval depressions with sharp, well-defined edges. They can be shallow (0.1–0.5mm) or deep (greater than 0.5mm). Boxcar scars are more amenable to resurfacing treatments due to their broader surface area and defined borders.

Rolling Scars

Broad depressions with sloping, undulating edges that give the skin a wave-like appearance. They’re caused by fibrous tethering of the dermis to the subcutaneous tissue. Rolling scars often respond well to subcision combined with filler or energy-based treatments.

Hypertrophic and Keloid Scars

Unlike atrophic scars, these are raised scars caused by excess collagen production during healing. They’re more common on the chest, back, and jawline. Treatment approaches differ significantly from those used for indented scars.

Advanced Treatment Methods

1. Microneedling and Radiofrequency Microneedling

Standard microneedling creates controlled micro-injuries that stimulate collagen remodelling in scarred tissue. Radiofrequency microneedling (such as Morpheus8 or Secret RF) takes this further by delivering RF energy through the needles directly into the scar tissue, generating heat that triggers more intense collagen contraction and remodelling.

A 2024 comparative study in Dermatologic Surgery demonstrated that RF microneedling produced a 62% improvement in acne scar severity scores after 3 sessions, compared to 41% with standard microneedling alone. Treatment is typically performed every 4–6 weeks for 3–4 sessions.

2. Fractional Laser Resurfacing

Fractional lasers create microscopic columns of thermal damage within the scar tissue, stimulating the body to replace damaged collagen with new, organised collagen fibres. Two main types are used:

• Non-ablative fractional lasers (e.g., Fraxel DUAL 1550nm): Heat the dermis without removing surface skin. Less downtime (3–5 days of redness) but requires more sessions
• Ablative fractional lasers (e.g., CO2, Erbium): Vaporise microscopic columns of skin, producing more dramatic results per session but with 7–14 days of significant downtime

For patients with darker skin tones (Fitzpatrick IV–VI), non-ablative fractional lasers are preferred due to the lower risk of post-inflammatory hyperpigmentation.

3. Subcision

Subcision is a minor surgical technique where a needle or cannula is inserted beneath the scar to physically break the fibrous bands tethering the skin down. This is particularly effective for rolling scars, where the tethering is the primary cause of the indentation. Subcision releases the scar and allows the skin to lift, creating a smoother surface.

Subcision is often combined with other treatments — particularly filler placement or PRP injection — to prevent the fibrous bands from re-forming and to support the lifted tissue.

4. TCA CROSS (Chemical Reconstruction of Skin Scars)

This targeted technique involves applying high-concentration trichloroacetic acid (70–100%) directly into individual ice pick and narrow boxcar scars using a fine applicator. The acid triggers controlled inflammation and collagen production within the scar, gradually filling it from the bottom up.

TCA CROSS requires multiple sessions (typically 3–6) spaced 4–6 weeks apart. A 2023 study in the Journal of Cosmetic Dermatology reported a 70% improvement in ice pick scar depth after 4 CROSS sessions — a remarkable result for this notoriously difficult scar type.

5. Dermal Fillers for Acne Scars

Hyaluronic acid fillers can be injected beneath individual scars to elevate the depressed tissue to the level of surrounding skin. This provides immediate visible improvement, though results are temporary (6–18 months depending on the product). Fillers work best for shallow boxcar and rolling scars with intact underlying tissue structure.

6. Platelet-Rich Plasma (PRP)

PRP — derived from the patient’s own blood — contains concentrated growth factors that accelerate tissue repair and collagen synthesis. When combined with microneedling, PRP enhances the healing response and has been shown to improve outcomes by 20–30% compared to microneedling alone (Lee et al., Stem Cells Translational Medicine, 2023).

7. Punch Excision and Grafting

For the deepest ice pick scars that don’t respond to other treatments, punch excision physically removes the scar using a small circular punch tool. The resulting wound is either sutured closed or filled with a tiny skin graft from behind the ear. While this creates a new, flat scar, it’s typically much less noticeable than the original deep pit.

The Multi-Modal Approach

The most effective acne scar treatment protocols combine multiple techniques, each targeting different aspects of the scarring. At Axiom Aesthetics, a typical comprehensive treatment plan might look like this:

1. Session 1: Subcision of rolling scars + PRP injection
2. Session 2 (4 weeks later): TCA CROSS for ice pick scars
3. Sessions 3–5 (monthly): RF microneedling for overall texture improvement
4. Session 6: Fractional laser for final refinement
5. Ongoing: Medical-grade skincare with retinoids, vitamin C, and SPF

This staged approach treats different scar types with the most appropriate modality while allowing adequate healing between sessions.

Managing Expectations

Honesty about outcomes is fundamental to patient satisfaction. While modern treatments can dramatically improve acne scarring, it’s important to understand that:

• Complete elimination of all scarring is usually not achievable
• Most patients can expect 50–80% improvement with a comprehensive treatment plan
• Deeper, more numerous scars require more sessions and more time
• Results continue to improve for 3–6 months after the final treatment as collagen remodels
• Maintaining results requires ongoing skincare and sun protection

Frequently Asked Questions

Should I wait until my acne is fully cleared before treating scars?

Ideally, yes. Active acne should be well-controlled before embarking on scar treatment, as ongoing breakouts can create new scars and potentially complicate healing from procedures. If you’re still experiencing breakouts, we’ll address that first — sometimes with medical-grade skincare, prescription treatments, or referral to a dermatologist for isotretinoin if appropriate.

How much does acne scar treatment cost?

Costs vary significantly depending on the severity of scarring and the treatment modalities required. Individual sessions typically range from £200–£800 depending on the technique. A comprehensive multi-session programme may total £2,000–£5,000. We provide a detailed cost breakdown during your consultation so there are no surprises.

Are acne scar treatments painful?

Discomfort varies by treatment. Microneedling and RF microneedling are performed under topical anaesthesia and are generally well-tolerated. Subcision may require local anaesthetic injection. TCA CROSS causes a brief stinging sensation. Laser treatments can be uncomfortable, and stronger topical or local anaesthesia is used. Overall, most patients describe the discomfort as manageable.

Can acne scars worsen with age?

Unfortunately, yes. As natural collagen production declines with ageing, the skin’s support structure weakens, and existing scars can become more prominent. This is one reason why addressing scarring earlier rather than later can be beneficial — treatments stimulate new collagen that helps maintain skin structure over time.

Ready to address your acne scarring? Book a scar assessment consultation at Axiom Aesthetics, where we’ll map your scar types, discuss realistic outcomes, and create a personalised multi-modal treatment plan designed to deliver the best possible improvement for your skin.