Acne scars can be significantly improved, though the right approach depends on the type and depth of scarring you’re dealing with. Shallow scars may respond well to topical treatments and microneedling, while deeper ones typically require laser resurfacing or in-office procedures. Most people see meaningful improvement through a combination of treatments rather than a single fix.
Identify Your Scar Type First
Not all acne scars are the same, and treatments that work well for one type can be ineffective for another. Acne scars fall into two broad categories: depressed scars (where tissue has been lost) and raised scars (where the body overproduces collagen during healing). Depressed scars are far more common on the face, while raised scars tend to appear on the chest, back, and jawline.
Within depressed scars, there are three distinct shapes. Ice pick scars are small, narrow indentations that point deep into the skin, almost like a puncture wound. Boxcar scars are broader depressions with sharp, defined edges, similar to a chickenpox scar. Rolling scars have sloping edges at varying depths, giving the skin a wavy, uneven texture. Many people have a mix of all three, which is why a single treatment rarely addresses everything.
Topical Treatments for Mild Scarring
If your scars are shallow, prescription retinoids are the most effective topical option. Retinoids speed up cell turnover and stimulate collagen production beneath the skin’s surface. In clinical testing, the treated side of patients’ faces showed a 55% reduction in total scar count compared to about 30% on the untreated side. These results take time, typically three to six months of consistent nightly use, and your skin will likely peel and feel sensitive in the first few weeks.
Over-the-counter products containing retinol (a milder form of prescription retinoids), azelaic acid, or vitamin C can produce modest improvements in texture and discoloration, but they won’t reshape deeper scars. If you’re dealing with dark spots left behind after a breakout rather than actual indentations, these products may be all you need. True scarring, where the skin’s surface is physically altered, requires more than what a serum can deliver.
Microneedling
Microneedling uses a device covered in tiny needles to create controlled micro-injuries across the skin. Your body responds by producing new collagen to repair those tiny punctures, which gradually fills in depressed scars from below. It works best for rolling scars and shallow boxcar scars. Professional treatments use longer needles than at-home dermarollers and produce noticeably better results.
You’ll need three or more sessions spaced four to six weeks apart. One advantage of microneedling is that there’s essentially no downtime. Your skin will look red and feel tight for a day or two, similar to a mild sunburn, but most people return to normal activities immediately. It’s also more budget-friendly than laser treatments and carries a lower risk of complications for darker skin tones.
Laser Resurfacing
For deeper or more widespread scarring, fractional laser treatments are one of the most effective options available. Fractional CO2 lasers work by vaporizing tiny columns of damaged skin while leaving surrounding tissue intact. This triggers an aggressive healing response that remodels scar tissue and builds new collagen over the following months.
Most people need two to four sessions of fractional CO2 laser for full effect, with results building gradually after each treatment. Expect five to ten days of downtime per session, with redness, swelling, and peeling as your skin heals. The results are more dramatic than microneedling, which is why lasers are typically recommended for deeper acne scars.
Non-ablative lasers (which heat tissue without removing it) are a less aggressive alternative. They cost less on average, around $1,100 per session compared to $2,000 for ablative treatments, and recovery is faster. The tradeoff is that results are subtler and may require more sessions.
Procedures for Deep or Stubborn Scars
TCA CROSS for Ice Pick Scars
Ice pick scars are notoriously difficult to treat because they’re narrow and deep. A technique called TCA CROSS involves applying a high-concentration acid (70 to 100%) directly into individual scars using a toothpick-sized applicator. This triggers a localized inflammatory response that stimulates new collagen formation at the base of each scar, gradually raising the depressed surface. Patients can expect a one to two grade improvement over about six months, often with multiple sessions. It’s one of the few treatments that specifically targets ice pick scars rather than treating the entire skin surface.
Subcision for Rolling Scars
Rolling scars often look indented because fibrous bands beneath the skin are physically pulling the surface downward. Subcision addresses this by inserting a small needle beneath the scar to cut those tethering bands and release the skin. The procedure also triggers new connective tissue formation beneath the scar. On its own, subcision produces mild to moderate improvement because scars can re-tether as they heal. Combining subcision with dermal fillers or other treatments significantly improves the outcome, since the filler physically prevents the scar from sinking back down while new tissue forms.
Chemical Peels
Medium-depth chemical peels remove the outer layers of skin, prompting regeneration that can smooth shallow scarring and even out skin tone. Recovery takes three to seven days, with mild peeling and redness. Peels work best as a complement to other treatments rather than a standalone solution for significant scarring.
Combining Treatments
Because most people have multiple scar types, the most effective approach is usually a combination. A common plan might involve subcision to release tethered rolling scars, TCA CROSS for scattered ice pick scars, and fractional laser or microneedling to improve overall skin texture. Treatments are typically staged over several months, with healing time between each procedure.
The total timeline from first treatment to final results is usually six months to a year, sometimes longer. Collagen remodeling continues for months after each procedure, so the full effect isn’t visible right away. Patience matters: skin that looks only slightly better at four weeks can show dramatic improvement by month three or four.
Important Considerations for Darker Skin
If you have a medium to dark skin tone, certain treatments carry a higher risk of post-inflammatory hyperpigmentation, where the treated area heals darker than surrounding skin. Laser treatments pose the greatest risk, though microneedling and chemical peels can also cause problems if performed incorrectly. Harvard Health emphasizes that these procedures should be performed by a dermatologist with specific expertise in treating darker skin types, since improper technique can worsen both scarring and discoloration. Microneedling and lower-concentration chemical peels are generally safer starting points for darker skin tones.
What Results to Realistically Expect
Acne scar treatments improve scarring rather than erase it completely. A realistic goal is 50 to 70% improvement in the appearance of scars, which in practice makes a significant visible difference. Shallow scars can sometimes become nearly invisible. Deep ice pick scars are the hardest to fully resolve, though even these can be softened considerably with the right combination of treatments.
Cost is a real factor. Laser resurfacing runs roughly $1,100 to $2,000 per session, and you’ll likely need multiple sessions. Microneedling is less expensive per session but still adds up over a full treatment course. Insurance rarely covers scar treatment since it’s classified as cosmetic. Some clinics offer payment plans, and starting with the most impactful treatment for your specific scar type helps you get the best return on what you spend.