Fractional Laser vs CO2 Laser: Which Is Better?

What Is Fractional Laser Resurfacing?

Fractional laser resurfacing describes how the laser is delivered, not how strong it is. Instead of treating the whole surface at once, it works in a pattern of tiny columns and leaves the skin around each one untouched, which helps the area heal faster while prompting fresh collagen over the following weeks. That pattern can be paired with either an ablative or a non-ablative laser, so fractional on its own does not tell you how deep a treatment goes, only that it is applied in fractions rather than across the full surface.

Because the laser skips the skin between those columns, recovery tends to be quicker than full-surface resurfacing. Many of the best-known fractional devices, such as Clear + Brilliant, are non-ablative and keep downtime short, which is why fractional has a reputation as the gentler route, even though it does not have to be. I reach for fractional settings when someone wants real improvement in texture, fine lines, or scarring but cannot take two weeks off to heal.

What Is CO2 Laser Resurfacing?

A CO2 laser is a type of ablative laser named for the carbon dioxide gas that produces its 10,600-nanometer wavelength. It vaporizes the outer layers of skin and heats the layers beneath, clearing away damaged tissue and triggering strong collagen remodeling as the skin rebuilds. Of the lasers used for resurfacing, CO2 is among the most powerful.

That strength is why it is so effective for deeper concerns like heavy wrinkling, significant sun damage, and stubborn scars. It also means more downtime, since the skin needs time to recover after the surface is treated. It is worth knowing that many modern CO2 lasers are themselves delivered in a fractional pattern, which is where the two terms in this comparison start to blur.

Fractional Laser vs. CO2 Laser: Key Differences

Since many people arrive comparing fractional and CO2, here is what that difference really comes down to: CO2 is always ablative, so it sits toward the stronger, longer-recovery end. Fractional is a delivery method rather than an intensity, so fractional treatments run the whole range, from a gentle non-ablative session at one end to a deep fractional CO2 at the other. It helps to picture three points on that range: gentle non-ablative fractional, fractional CO2 that is ablative but applied in columns, and full-surface CO2 that treats the entire surface at once. The differences below all track where a treatment falls along it.

Comfort and Aftercare

Both treatments are done in the office with numbing to keep you comfortable, and aftercare is similar either way. You keep the skin clean and moist, stay out of the sun, and use sunscreen once the new skin has healed.

Which Laser Is Better for Your Skin Concern?

Rather than asking which laser is best overall, it helps to ask which one fits the problem you want to solve.

Dark Spots and Sun Damage

Surface pigment and sun spots often respond to a gentler, non-ablative treatment, sometimes paired with other treatments. Heavier, layered sun damage may need a more ablative approach to see a real difference.

Uneven Texture

Rough or uneven texture is one of the most satisfying concerns to treat, and a gentler, non-ablative fractional session is frequently enough to leave skin noticeably smoother without a long recovery.

Is Fractional Laser Safer Than CO2 Laser?

I would avoid calling any laser flatly safer than another, because safety depends on how well a treatment is matched to the person. A gentler, non-ablative treatment carries less risk of prolonged redness or pigment change, but an ablative CO2 treatment performed carefully on the right candidate is also very safe.

What actually drives safety is your skin type, the depth chosen, the experience of the person holding the laser, and how closely you follow aftercare. Deeper resurfacing on darker skin tones, for instance, needs extra caution because of the risk of pigment changes, which I assess closely before recommending anything. The safest treatment is the one chosen for your skin, not the one with the gentlest reputation.

How Much Does Fractional Laser vs CO2 Laser Cost?

Laser resurfacing typically runs between about $2,500 and $5,000 per treatment, with RealSelf putting the national average around $2,786. The exact figure depends on the type of laser, the size of the area, and the number of sessions, and the price is usually lower when resurfacing is combined with another procedure.

A deeper ablative treatment can cost more per session but may need only one visit. A gentler, non-ablative fractional session can cost less each time but is often done as a short series, so the totals land closer together than you might expect. We go over exact numbers at your visit.

When Should You See a Facial Plastic Surgeon?

Plenty of medspas offer laser treatments, but a device is only as good as the judgment behind it. Seeing a facial plastic surgeon matters most when your concern needs real depth, when you have reacted to a treatment before, or when your skin tone calls for a more careful plan.

A consultation is also the only reliable way to answer the fractional-versus-CO2 question for your face. I look at your skin in person, ask about your history and timeline, and recommend the approach that fits your goals.

Schedule a Laser Consultation in New Jersey

If you would like a clear answer about which laser suits your skin, call our Princeton office at 609-279-0009 or request a consultation through our website. We will look at your skin together and map out a plan that fits your goals and your schedule.

Frequently Asked Questions About Laser Treatments