Acne scars can be significantly improved with the right combination of treatments, but the best approach depends on the type of scar you’re dealing with. Some scars respond well to at-home topical products over a few months, while deeper or more textured scars typically need professional procedures. The key is correctly identifying what you have and matching it to treatments that target that specific problem.
First, Check Whether You Have Scars or Discoloration
Many people assume they have acne scars when they actually have post-inflammatory hyperpigmentation, which is the flat, dark or reddish marks left behind after a breakout. The easiest way to tell the difference is by touch. Hyperpigmentation feels smooth when you run your finger over it. Acne scars create textural changes you can feel: depressions, indentations, or raised bumps on the skin’s surface.
This distinction matters because the treatments are completely different. Hyperpigmentation is a color problem that fades on its own over months and responds well to sunscreen, vitamin C serums, and ingredients like azelaic acid or niacinamide. True acne scars involve structural damage beneath the skin and rarely improve without targeted intervention.
Types of Acne Scars
Atrophic (indented) scars are the most common type left by acne, and they come in three forms:
- Ice pick scars are narrow with a small opening at the surface but extend deep into the skin, like tiny puncture marks. They’re the hardest to treat because of their depth.
- Boxcar scars are wider with sharp, defined edges and flat bases. They can be shallow or deep, and their box-like shape makes them more noticeable in certain lighting.
- Rolling scars give the skin a wavy, uneven appearance rather than sharp indentations. They’re caused by fibrous bands pulling the skin downward from underneath.
Some people also develop hypertrophic or keloid scars, which are raised above the skin surface. These are more common on the chest, back, and jawline, and they require different treatment strategies than indented scars. Most people searching for acne scar solutions are dealing with some combination of the atrophic types.
What Topical Treatments Can Do
Prescription retinoids are the most effective at-home option for mild scarring. Both tretinoin and adapalene work by speeding up skin cell turnover and stimulating collagen production beneath the surface. In a randomized controlled trial comparing the two, patients who applied tretinoin nightly for 12 weeks saw an 89.1% improvement rate in atrophic scars, while adapalene users saw 84.7%. The tretinoin group also had a greater reduction in scar volume. Both require consistent nightly use for at least three months before you can judge results.
Over-the-counter retinol (a weaker form of tretinoin) can help with very shallow texture issues but won’t meaningfully change deeper scars. The same is true for exfoliating acids like glycolic acid and salicylic acid. They can smooth the skin’s surface and improve overall tone, but they don’t reach the depth where most acne scars form. Think of topicals as a foundation layer: helpful for mild texture and useful alongside professional treatments, but limited on their own for anything beyond shallow scarring.
Professional Treatments by Scar Type
Laser Resurfacing
Fractional lasers are the most widely used professional treatment for acne scars. They create microscopic columns of damage in the skin, which triggers the body to rebuild collagen and smooth out depressed areas. There are two main categories. Ablative lasers (like fractional CO2) remove thin layers of skin and produce more dramatic results. Non-ablative lasers (like Fraxel) heat tissue below the surface without breaking it, producing milder results with less downtime.
In a head-to-head comparison, 75% of CO2 laser sites showed at least 25% to 50% scar improvement after just two sessions spaced two months apart, compared to 60% for erbium laser sites. Most people need two to five sessions total depending on scar severity. CO2 laser treatments tend to cost between $1,650 and $3,420 per course, while non-ablative treatments average around $1,445 per session.
TCA CROSS for Ice Pick Scars
This technique uses a high-concentration chemical acid applied precisely into individual scars with a toothpick-sized applicator. The acid causes controlled damage inside the scar, which then heals by producing new collagen that fills in the depression from the bottom up. Repeated sessions can normalize deep ice pick, rolling, and boxcar scars. The collagen remodeling process continues for several months after each treatment, so patience between sessions is important. Chemical peels for scarring generally start around $400 per session.
Subcision for Rolling Scars
Rolling scars are uniquely caused by fibrous bands tethering the skin to deeper tissue, and subcision directly addresses this. A small needle is inserted beneath the scar to physically separate the skin surface from the underlying attachments. This releases the tethering that creates the wavy appearance and triggers new connective tissue formation beneath the scar, which lifts the depression. Subcision is often combined with other treatments like laser resurfacing or fillers for better results. Surgical scar procedures start around $200 per session.
Microneedling
Microneedling uses a device covered in fine needles to create thousands of tiny punctures in the skin. Like laser treatments, this triggers a wound-healing response that produces new collagen. It works best for shallow to moderate boxcar and rolling scars. Results build gradually over three to six sessions, typically spaced four to six weeks apart. At around $300 or more per session, microneedling is one of the more affordable professional options and works on all skin tones, which is an advantage over some laser treatments that carry a higher risk of discoloration in darker skin.
Dermal Fillers
Injectable fillers can immediately lift depressed scars by adding volume beneath them. This works best for a small number of deeper, well-defined scars rather than widespread shallow texture. The results are visible right away but temporary, lasting six months to two years depending on the product. Fillers range from $600 to over $1,000 per syringe.
What Recovery Looks Like
Recovery varies dramatically by treatment. After non-ablative laser treatments like Fraxel, redness and swelling are common for several days. Many people can work remotely the next day, but in-person events are easier to manage after the skin calms down, usually within a week. Early improvement can appear within several weeks.
CO2 laser requires more recovery. Redness, swelling, crusting, oozing, and peeling can last longer depending on treatment depth. Some patients are comfortable going out after about a week, while others need closer to two weeks, especially after more aggressive settings. Plan for one to two weeks of social downtime.
Subcision recovery involves swelling and bruising for the first few days. You may notice an immediate lift in your scars, but part of that early improvement is just swelling. The true result becomes clear after the tissue has settled and the skin has had time to repair itself, which can take several weeks. Microneedling and chemical peels generally have the shortest recovery, with redness lasting a few days and peeling resolving within a week.
Combining Treatments Gets Better Results
Most dermatologists treat acne scars with a combination approach rather than relying on a single procedure. A common strategy might pair subcision to release tethered rolling scars with laser resurfacing to smooth the overall texture, then use TCA CROSS on remaining ice pick scars. This layered approach works because each scar type has a different underlying structural problem.
If you’re working with a limited budget, microneedling and topical retinoids together offer a reasonable starting point that can improve mild to moderate scarring over six to twelve months. For deeper or more extensive scarring, laser resurfacing or a subcision-plus-laser combination tends to produce the most noticeable change. Insurance rarely covers cosmetic scar revision, so most people pay out of pocket and space treatments over time to manage costs.
Results from any professional treatment aren’t instant. Collagen remodeling continues for three to six months after each session, so the full effect of a treatment series may not be visible for six months to a year after you start. Setting realistic expectations helps: the goal for most people is significant improvement, not complete erasure. A 50% to 70% improvement in scar appearance is considered a strong outcome, and for many people, that’s enough to feel noticeably different about their skin.