Acne scars can be significantly improved, but the right approach depends entirely on the type of scar you have. Shallow scars may respond to at-home treatments over several months, while deep or widespread scarring typically requires professional procedures, often in combination. Most people see meaningful improvement, though completely erasing scars to the point of invisible skin is rarely realistic.
The first step is identifying what kind of scarring you’re dealing with, because treatments that work well for one type can be ineffective for another.
Know Your Scar Type First
Acne scars fall into two broad categories: indented (atrophic) scars, where tissue was lost during healing, and raised scars, where the body overproduced collagen. Most people searching for scar fixes have atrophic scars, which come in three distinct shapes.
- Ice pick scars are narrow, deep pits that extend into the dermis, almost like a small puncture. They’re the hardest to treat with surface-level methods because the damage runs so deep relative to their width.
- Boxcar scars are wider depressions with sharp, defined edges, similar to a chickenpox scar. They can be shallow or deep, and depth determines which treatments apply.
- Rolling scars create a wave-like unevenness across the skin. They’re caused by fibrous bands pulling the surface downward from underneath, which means the problem is structural, not just textural.
Raised scars include hypertrophic scars, which stay within the boundaries of the original breakout, and keloids, which grow beyond those boundaries into surrounding skin. Keloids are firm, smooth, often purplish-red, and can appear months or even years after the acne itself heals. They can also itch or feel tender. These require a completely different treatment strategy from indented scars.
What At-Home Treatments Can Actually Do
Topical products won’t eliminate deep scars, but they can improve mild, shallow scarring and overall skin texture. The most studied ingredients are prescription retinoids. In clinical testing, adapalene at 0.3% concentration improved skin texture by one to two grades in about 56% of patients. A separate trial found that daily topical tazarotene (a stronger retinoid) produced scar reduction comparable to dermaroller treatment over three months, suggesting it’s a reasonable starting point for people with mild scarring who aren’t ready for in-office procedures.
Over-the-counter retinol is weaker than prescription retinoids but still promotes skin cell turnover and gradual collagen rebuilding. Other ingredients with some evidence behind them include azelaic acid, vitamin C serums, and alpha hydroxy acids, all of which work on the surface layers of skin. If you’ve been using these consistently for three to six months without noticeable improvement, your scars likely need professional treatment.
Microneedling and RF Microneedling
Standard microneedling creates thousands of tiny punctures in the skin, triggering your body’s wound-healing response and stimulating new collagen production. It works at a superficial to moderate depth and produces moderate collagen growth over a series of sessions, typically three to six spaced about a month apart.
Radiofrequency (RF) microneedling adds heat energy delivered through insulated or gold-plated needles directly into the deeper dermal layers. This thermal energy causes existing collagen to contract while also triggering longer-term collagen remodeling at a depth that standard microneedling can’t reach. The result is more significant skin tightening and more controlled collagen production. RF microneedling is particularly effective for boxcar and rolling scars, where the damage sits in those deeper layers.
Both types of microneedling involve redness and mild swelling for a few days afterward, with skin looking noticeably smoother over the following six weeks as new collagen fills in. Full results continue developing for several months after your last session.
Laser Resurfacing
Fractional lasers are among the most effective single treatments for acne scarring. They work by creating microscopic columns of injury in the skin while leaving surrounding tissue intact, which speeds healing and reduces risk compared to older ablative lasers that removed entire layers.
There are two main categories. Ablative fractional lasers (like CO2 or erbium) vaporize tiny columns of scar tissue, prompting aggressive collagen remodeling. These produce the most dramatic results but come with a longer recovery period, often one to two weeks of visible redness and peeling. Non-ablative fractional lasers heat the tissue without removing it, meaning less downtime but more sessions needed for comparable results.
The average cost of laser skin resurfacing is $1,829 per session, according to the American Society of Plastic Surgeons, though prices vary widely by region and laser type. Most people need two to five sessions. Insurance almost never covers scar treatment since it’s considered cosmetic.
TCA CROSS for Ice Pick Scars
Ice pick scars are notoriously resistant to broad surface treatments because they’re so narrow and deep. The TCA CROSS technique (chemical reconstruction of skin scars) was designed specifically for this problem. A dermatologist applies high-concentration trichloroacetic acid directly into individual scars using a toothpick or small applicator. The acid causes controlled destruction of the scar walls, and as the tissue heals, new collagen fills the scar from the bottom up, increasing dermal volume.
This remodeling process continues for several months after each session. Results are graded on a scale where greater than 70% improvement is considered excellent and 50 to 70% is considered good. Multiple sessions spaced six to eight weeks apart are standard. It’s one of the more affordable professional options since each session is relatively quick, though it targets only one scar type.
Subcision for Rolling Scars
Rolling scars are uniquely caused by fibrous bands of tissue that tether the skin’s surface to deeper structures, creating that undulating appearance. Subcision directly addresses this. A dermatologist inserts a needle beneath the scar and sweeps it back and forth to physically sever those fibrous anchors. The release itself provides immediate improvement, and the blood that pools in the space (a small hematoma) acts as a scaffold for new tissue formation.
Unlike dermal fillers, which can temporarily lift depressed scars but need to be re-injected every several months, subcision produces permanent correction of the tethering. That said, some practitioners combine subcision with fillers or other treatments for deeper scars where the released skin needs additional volume support underneath. Subcision is often paired with microneedling or laser treatments in the same treatment plan to address both the structural tethering and surface texture.
Punch Techniques for Deep Scars
When individual scars are too deep for resurfacing or needling to reach, surgical punch techniques offer a more direct solution. The American Society for Dermatologic Surgery identifies patients with deep ice pick scarring as the best candidates.
In punch excision, the scar is literally cut out with a small circular tool matched to the scar’s size, and the wound is closed with stitches. The resulting fine line scar is typically far less noticeable than the original pit. In punch grafting, the scar is removed the same way, but instead of stitching, a small plug of skin (usually taken from behind the ear, where the texture is similar) fills the hole. These are precision procedures done under local anesthesia, and they’re reserved for select scars rather than used across an entire face.
Combining Treatments Gets Better Results
Most dermatologists treating moderate to severe acne scarring use a combination approach rather than relying on a single technique. A typical plan might start with subcision to release tethered rolling scars, follow with TCA CROSS for any ice pick scars, and then use a series of fractional laser or RF microneedling sessions to smooth the overall texture. This layered strategy works because each scar type responds to a different mechanism of action.
Treatments are usually spaced four to eight weeks apart to allow collagen remodeling between sessions. The full collagen rebuilding cycle takes about six weeks per treatment, with improvements continuing to develop for months. Most people following a combination plan see their best results six to twelve months after their final session.
What to Expect for Cost and Timeline
A realistic treatment plan for moderate acne scarring might involve three to six professional sessions over six to twelve months, with continued improvement for several months after the last one. Costs add up quickly. Laser resurfacing averages around $1,829 per session, microneedling typically runs $200 to $700 per session, and chemical peels range from $150 to $600 depending on depth and type. Subcision and punch procedures vary but generally fall in the $200 to $500 range per session.
For someone with widespread scarring pursuing a combination approach, total costs can range from $2,000 to over $10,000 depending on the severity, the treatments chosen, and how many sessions are needed. Some clinics offer package pricing that brings the per-session cost down. Patience matters as much as budget here. Collagen remodeling is a slow biological process, and pushing for too-frequent treatments doesn’t speed it up. The skin needs time between sessions to rebuild properly.