I looked into laser scar treatment seriously a few years ago. I had rolling acne scars along my cheeks that topical treatments hadn't touched in two years. Spent months looking into it, had a few consultations, went ahead.
The First Thing to Know
The type of scar you have changes everything -- the right laser type, whether you need other procedures first, and whether laser is the right choice at all. The gap between "this changed my skin" and "I spent thousands and noticed nothing" is almost always a mismatch between scar type and treatment.
And provider selection matters more than most people realise. A bad provider doesn't just waste your money -- they can actively make things worse, especially for darker skin.
Scar Types
Atrophic acne scars (the depressed kind)
These are the divots and craters left by inflammatory acne. Three subtypes, treated differently.
Ice pick scars -- narrow and deep. Laser alone doesn't do much. TCA cross (a chemical applied precisely to the scar base) is usually the starting point, with fractional laser afterward to address surrounding texture.
Boxcar scars -- defined edges, flat base. Fractional CO2 or erbium laser works well here. Three to four sessions, 30-70% improvement is realistic.
Rolling scars -- wave-like, from fibrous bands pulling the skin down. Subcision first (a minor procedure that breaks those bands), then laser. Skipping subcision and going straight to laser is a waste of money -- laser can't fix the underlying tethering. I had rolling scars. I did subcision first, then two sessions of fractional CO2. The change was real.
Hypertrophic scars
Too much collagen during healing. Pulsed dye laser is what actually moves these. 3-5 sessions, and they get noticeably flatter and less red. The laser goes after the blood vessels feeding the scar.
Keloid scars
More common in darker skin tones and partly genetic. They grow beyond the original wound boundary. Laser alone is generally not enough and can sometimes trigger regrowth. Corticosteroid injections plus pulsed dye laser is the usual combination. Larger ones sometimes need surgical removal too.
Tell your provider if you scar this way. Even a treatment at a completely different site can trigger one there.
PIH
Not technically a scar -- no structural change, just pigmentation. Topical brighteners (niacinamide, tranexamic acid, alpha arbutin, azelaic acid) plus SPF work for most people. Laser for PIH carries real risk of making it worse, especially in deeper skin tones. Try topicals first — see the full guide to skincare for hyperpigmentation.
What Recovery Actually Looks Like
Depends which type.
Non-ablative (Vbeam, PicoSure) -- redness for a day or two, some swelling. You can mostly go about your day.
Fractional non-ablative (Fraxel Dual) -- rough texture, looks pink, 3-5 days. Plan around it.
Fractional ablative (CO2) -- genuinely rough. Red, swollen, peeling for 7-14 days. Full redness can take months to clear. I took a week off for my second CO2 session and it was barely enough.
No actives, no makeup until cleared, SPF every day, no sun. Non-negotiable.
Skin Tone and Provider Selection
If you have melanin-rich skin, ablative lasers can cause PIH -- or in some cases, permanent pigment loss. What's routine for a lighter-skinned patient can genuinely damage darker skin.
This is not a reason to avoid laser if you have a deeper skin tone. It's a reason to find a provider with documented experience treating your skin tone. Not a med spa. A board-certified derm or plastic surgeon. Ask how many patients with your skin tone they've treated with that laser, and ask to see results.
For deeper skin tones, RF microneedling and Nd:YAG lasers carry less risk. Non-ablative fractional at conservative settings is another option.
Worth It?
With the right scar type and a skilled provider -- yes. Done right, it's one of the better tools there is. Done wrong, it costs a lot and can make things worse.
You won't get total erasure. 40-70% better over several sessions is what most people see -- that's real, even if it's not the transformation some clinics advertise.
Get a proper consultation first. Confirm the scar type. Ask whether subcision or TCA cross needs to come before laser -- often they do. Budget for several sessions.
FAQs
How many sessions?
Atrophic acne scars usually need 3-6, spaced 4-8 weeks apart. Hypertrophic -- 3-5 pulsed dye sessions. They build on each other.
Does it hurt?
They put numbing cream on 30-60 minutes before. Non-ablative -- mild, like a snapping sensation. CO2 is more intense even with it.
What does it cost?
Non-ablative is roughly $300-600 a session, fractional CO2 $1,000-3,000, RF microneedling $800-2,000. You'll need multiple sessions, and none of it is covered.
Can I use retinol or acids during treatment?
I paused retinoids and acids 1-2 weeks before each session, and again after. Don't restart until the barrier's recovered -- your provider will say when.
Are results permanent?
The structural collagen improvements largely are. New acne creates new scars, and sun exposure can darken existing marks. Consistent SPF is essential long-term.