A January 2026 split-face trial found vitamin C plus E plus ferulic acid after ablative fractional CO2 laser sped healing and reduced redness and pigmentation. For people with icepick acne scars — narrow, deep V-shaped pits that reach into the dermis — it helps recovery, not depth repair. Ablative fractional CO2 laser removes tiny columns of skin to trigger collagen growth. The antioxidant serum supported the healing window after that controlled injury; it did not replace treatment aimed at the icepick tract itself.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Table of Contents
- What did the 2026 trial test?
- How much difference did the serum make?
- What does this mean for icepick scars?
- Who should pay closest attention?
What did the 2026 trial test?
The study enrolled adults aged 18–50 with moderate-to-severe atrophic acne scars, according to the PubMed trial record. Atrophic scars sit below the surrounding skin surface. Icepick scars are one subtype, alongside boxcar and rolling scars.
Each participant applied CE Ferulic serum to one cheek and normal saline to the other cheek immediately after laser and for 14 days, according to the Wiley trial report. Each person therefore served as their own control. Investigators assessing results did not know which side received serum.
How much difference did the serum make?
Complete scab detachment by day 7 occurred in 60.9% of serum-treated sides versus 34.4% of saline sides, according to the full trial text. That gap signals faster wound closure. Faster closure matters because open laser wounds itch, sting, crack, and catch on pillowcases and masks.
Serum-treated sides also had lower redness and pigment readings at days 3, 7, and 14, according to ConsultantLive's trial report. By day 14, those sides retained moisture better and showed stronger barrier function. In practice, that can mean less tightness, flaking, and dark-spot risk during the first two weeks.
What does this mean for icepick scars?
The 14-day follow-up measured healing, redness, pigment, and barrier function. It did not measure long-term icepick depth remodeling or recurrence. A smoother first two weeks does not prove shallower icepick pits months later.
Fractional lasers alone have limited effect on deep narrow tracts. Dermatology guidance reserves icepick tracts for TCA CROSS or punch excision or elevation. Think of the serum as aftercare for the laser session, while TCA CROSS treats the pit wall and punch surgery removes or lifts the tract.
Who should pay closest attention?
The trial enrolled Chinese patients, all reported as Fitzpatrick skin type IV. That skin type tans easily and rarely burns, but faces higher post-laser hyperpigmentation risk. The pigment benefit therefore matters most for medium to brown skin prone to lingering dark marks.
Ask your dermatologist these practical questions before your laser appointment: Bring photos of your scars in overhead and angled light. Mark the deepest pits. Ask for a written plan that names each scar type, each procedure, and each aftercare product.
- Is my main scar type icepick, boxcar, rolling, or mixed?
- Do I need TCA CROSS or punch work before or instead of fractional laser?
- Can I use an antioxidant serum immediately after laser and for how many days?
- What sun protection, cleanser, moisturizer, and makeup pause do I need during healing?
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