Laser treatment for acne scars

Lasers are among the most effective tools for atrophic (depressed) acne scars, but as with pigment, success depends on matching the technology to the specific scar and skin.

Fractional lasers are a mainstay, drilling microscopic columns that stimulate collagen to fill and smooth depressed scars over a series of sessions, in both non-ablative (gentler, more sessions) and ablative (stronger, more downtime) forms. Vascular lasers can address the red or purple discoloration of newer scars. For best results, lasers are frequently combined with other modalities like subcision or microneedling, since no single approach clears every scar type, boxcar, rolling, and ice-pick scars each respond differently. For an independent overview, see Acne scars: treatment options.

Two cautions apply. Active acne should be controlled before resurfacing scars, and darker skin tones require careful, conservative settings to avoid post-inflammatory pigmentation. Realistic expectations matter too: laser typically delivers meaningful improvement across several sessions rather than complete erasure. For the right scars in experienced hands, the improvement in skin smoothness and confidence is substantial, which is why a proper assessment of scar types before choosing a laser is the step that determines the outcome.

Related reading: How Many Laser Sessions for Acne Scars Really Take.

A few principles hold across this category. The right device is the one matched to your concern, your skin tone, and your tolerance for downtime, not the newest machine on the floor. Settings, operator experience, and a test spot for higher-risk skin types matter more than the brand name on the platform. Ask which wavelength is being used and why it fits your case before any treatment begins.

Outcomes also depend on realistic staging. Most protocols are a planned series rather than a single visit, and final results are best judged weeks to months after the last session as the skin remodels. A careful consultation should set that timeline out in plain terms, name the expected recovery, and explain the plan if a side effect appears.

For independent background on this topic, see Acne scars: treatment options, and review the full source list below. This article is editorial reporting and is not a substitute for a consultation with a board-certified dermatologist.