Acne Scars: Types, Prevention & the Best Treatments

First, an important distinction: not everything that looks like an acne scar actually is one. • Post-inflammatory hyperpigmentation (PIH): Dark spots left behind after a pimple heals. These are flat, colored marks — not true scars. They fade over time (months to years) and respond well to topical treatments. • Post-inflammatory erythema (PIE): Red or pink marks left after acne. More common in lighter skin tones. Also flat and temporary. • True acne scars: Changes in skin texture — indentations or raised areas. These are permanent without treatment because they involve damage to the deeper dermis.

• Ice pick scars: Narrow, deep, V-shaped pits. The most difficult type to treat because they extend deep into the dermis. Often caused by deep cystic acne. • Boxcar scars: Broad, rectangular depressions with well-defined edges. Caused by inflammatory acne that destroys collagen. Range from shallow to deep. • Rolling scars: Wide, shallow, wave-like depressions. Caused by fibrous bands pulling the skin down from underneath. Give the skin an uneven, undulating texture. • Hypertrophic/keloid scars: Raised, thickened scars. More common on the chest, back, and jawline. Result from excess collagen production during healing.

Ice pick scars: • TCA cross (trichloroacetic acid applied directly into the scar) • Punch excision (surgically removing the scar and closing with sutures) • Microneedling RF (radiofrequency microneedling) Boxcar scars: • Fractional laser resurfacing (CO2 or erbium) • Microneedling with PRP • Subcision (breaking fibrous bands beneath the scar) • Dermal fillers for deep boxcar scars Rolling scars: • Subcision (primary treatment) • Microneedling combined with PRP • Fractional laser • Filler injection Hypertrophic/keloid scars: • Corticosteroid injections (flatten raised tissue) • Silicone sheets or gel • Laser therapy (pulsed dye laser) • Cryotherapy

• Microneedling: Creates thousands of micro-channels in the skin, triggering your body's wound-healing response. New collagen fills in depressed scars over time. 4-6 treatments needed, spaced 4-6 weeks apart. RF microneedling adds radiofrequency energy for deeper remodeling. • Fractional laser resurfacing: Creates microscopic columns of controlled damage, leaving surrounding tissue intact for faster healing. CO2 lasers are more aggressive (better results, more downtime); erbium lasers are gentler. • Chemical peels: TCA peels at 15-35% concentration improve shallow scars and discoloration. Multiple sessions needed. • Subcision: A needle is inserted beneath the scar to release fibrous adhesions pulling the skin down. Most effective for rolling scars. Often combined with filler or microneedling. • Dermal fillers: Hyaluronic acid or poly-L-lactic acid fillers can immediately improve the appearance of deep scars. Results are temporary (6-18 months) but effective.

The best scar treatment is prevention: • Treat acne early and aggressively: Don't wait for scarring to seek professional help. The Accure Acne Laser, isotretinoin, and other treatments can stop scarring before it starts. • Never pick or pop pimples: This is the single biggest controllable risk factor for scarring. • Use sunscreen daily: UV exposure darkens post-acne marks and can slow scar healing. • Keep skin hydrated: A healthy moisture barrier heals faster and scars less. • Consider the Accure Laser for active acne: By treating the root cause (overactive oil glands), you prevent the deep inflammation that leads to scarring.

For post-inflammatory hyperpigmentation and mild texture issues: • Retinoids (tretinoin, adapalene): Accelerate cell turnover and stimulate collagen. The most evidence-backed topical for scar improvement. • Vitamin C serum (L-ascorbic acid 10-20%): Antioxidant that brightens dark marks, stimulates collagen, and protects against UV damage. • Azelaic acid (15-20%): Fades hyperpigmentation and has anti-inflammatory properties. Safe for pregnancy and all skin tones. • Niacinamide (5-10%): Reduces pigmentation, strengthens skin barrier, and has anti-inflammatory benefits. • Alpha hydroxy acids (glycolic, lactic): Surface-level exfoliation that improves texture and fades marks over time.