Acne scars can be significantly improved, but the right approach depends entirely on what type of scar you’re dealing with. Some marks that look like scars are actually flat discoloration that fades on its own over months. True scars involve physical changes in skin texture, either indentations or raised tissue, and those require more targeted treatment. The good news: a combination of topical products, professional procedures, and consistent skin protection can make a real difference.
Dark Marks vs. Actual Scars
Before investing in scar treatments, it’s worth figuring out whether you have true scars or post-inflammatory hyperpigmentation (PIH), which is the flat, dark or reddish spots left behind after a breakout. PIH involves no change in skin texture. It often fades by itself, though this can take months or even years. You can speed things up with alpha hydroxy acids like glycolic acid, which help your skin turn over faster and push pigmented cells to the surface. Leave-on products like lotions and creams work better for this than wash-off cleansers. Over-the-counter options handle subtle marks well, but deeper or long-lasting discoloration may respond better to a prescription-strength cream.
True acne scars, on the other hand, are textural. They’re dents, pits, or raised bumps in the skin. If you run your finger across the area and feel unevenness, you’re dealing with scarring that won’t resolve with exfoliants alone.
Types of Acne Scars
Knowing your scar type helps you choose the treatment most likely to work. Atrophic scars (indentations) come in three forms:
- Ice pick scars are small, narrow indentations that point down deep into the skin, almost like a puncture wound. They’re the hardest to treat because of their depth.
- Boxcar scars are broader depressions with sharp, defined edges, almost like a small box pressed into the skin.
- Rolling scars vary in depth and have sloping edges, giving the skin a wavy, uneven appearance. These are caused by bands of scar tissue pulling the skin surface downward.
Then there are hypertrophic and keloid scars, which are the opposite: raised lumps of tissue that form when the body overproduces collagen during healing. Hypertrophic scars stay within the boundaries of the original breakout, while keloids grow beyond them.
What Topical Treatments Can Do
Topical products won’t erase deep scars, but they can meaningfully improve shallow ones and overall skin texture. Retinoids are the strongest option available for home use. Tretinoin (prescription-strength) stimulates new collagen production and helps reorganize collagen fibers in the skin. In clinical use, tretinoin at 0.05% has been shown to flatten atrophic scars in about 79% of treated patients when combined with mild chemical peels.
Adapalene, available over the counter at lower strengths, works through a slightly different mechanism. It slows the breakdown of existing collagen while encouraging new collagen growth. A 24-week course of adapalene at 0.3% improved skin texture by one to two grades in about 56% of patients. These aren’t overnight results. You’re looking at several months of consistent daily use before improvements become visible, and retinoids make your skin more sun-sensitive, so sunscreen is non-negotiable.
Professional Procedures That Work
For moderate to severe scarring, in-office treatments deliver the most noticeable results. Most people benefit from a combination of techniques rather than a single procedure.
Microneedling
A dermatologist uses a device with fine needles to create controlled micro-injuries in the skin, triggering your body’s natural wound-healing response. New collagen starts filling in fine lines and softening shallow scars around weeks three to six after a session. Collagen remodeling continues for up to six months after your final session, so patience matters. Most people need multiple sessions spaced several weeks apart.
Fractional Laser Resurfacing
Fractional lasers create tiny columns of damage deep in the skin. The heat evaporates water in the tissue, which triggers repair processes and the formation of new collagen fibers. The result is thicker, tighter, more elastic skin over the treated area. Ablative lasers (which remove a thin layer of skin) average around $2,000 per session, while non-ablative lasers (which heat tissue without removing it) average around $1,100. Insurance rarely covers these procedures since they’re considered cosmetic.
TCA CROSS for Deep Scars
For stubborn ice pick scars, a technique called TCA CROSS involves applying a high concentration of trichloroacetic acid (70 to 100%) directly into individual scars. The acid triggers a controlled inflammatory response that stimulates collagen production from the bottom of the scar upward. Patients can expect a one to two grade improvement over a six-month period. It also works on boxcar and rolling scars. Multiple sessions are typically needed, and your dermatologist applies the acid precisely to each scar, so surrounding skin stays untouched.
Subcision for Rolling Scars
Rolling scars are caused by fibrous bands of tissue pulling the skin surface downward. Subcision breaks those bands using a needle inserted beneath the scar, releasing the tethered skin so it can rise back to a more even level. Research comparing subcision combined with radiofrequency microneedling against other combination approaches found that the subcision group had statistically superior results for scar improvement, with most patients requiring two to three sessions. Patient satisfaction in both groups exceeded 75% improvement, which suggests that even one or two rounds can produce results you’ll notice.
At-Home Microneedling: Worth the Risk?
Derma rollers and at-home microneedling devices are widely available, but they come with real downsides. The FDA has not authorized any microneedling medical devices for over-the-counter sale. Common side effects include bleeding, bruising, redness, tightness, itching, and peeling, which usually resolve within days or weeks. Less common risks include infection, dark or light spots on the skin, cold sore flareups, and swollen lymph nodes.
The needles on consumer devices are shorter than clinical ones, which limits how much collagen remodeling they can trigger. If you do use one, never share it with anyone else, and clean it between uses exactly as the manufacturer directs. For anything beyond the most superficial texture concerns, clinical microneedling with longer needles and controlled technique will produce better results with less risk of complications.
Why Sunscreen Matters During Treatment
Scar tissue is more vulnerable to UV damage than normal skin because it lacks normal levels of melanin. Sun exposure can darken or lighten scars, making them more visible rather than less. Broad-spectrum sunscreen with SPF 30 or higher protects the collagen and elastin your skin is actively rebuilding, prevents discoloration in healing tissue, and reduces the kind of inflammation that leads to permanent changes in scar appearance. This applies during any active treatment, whether you’re using a retinoid at home or recovering from a laser session. Skipping sunscreen can undo weeks of progress.
Building a Realistic Treatment Plan
Acne scar treatment is almost always a process measured in months, not weeks. A practical starting point for mild scarring is a retinoid (adapalene is available without a prescription) plus daily sunscreen, used consistently for at least three to six months before evaluating results. For moderate scarring, a dermatologist can assess your specific scar types and recommend a combination approach. Many people see the best outcomes from pairing procedures: subcision to release tethered rolling scars, microneedling or laser to improve overall texture, and TCA CROSS for any deep ice pick scars.
Getting active breakouts under control first is essential. Treating scars while new acne is still forming means you’re always catching up. Once your skin is stable, your dermatologist can map out which procedures target which scars, how many sessions to expect, and what kind of improvement is realistic for your skin. Complete elimination of deep scars isn’t always possible, but significant, visible improvement is the norm with the right combination of treatments.