CO₂ Laser Resurfacing: Results, Safety, Recovery & Cost

CO₂ laser resurfacing is not simply a stronger facial. It is an ablative medical procedure. Good results depend on the right patient, depth, density and treatment area. Those choices must also fit a realistic recovery plan.

What Is Fractional CO₂ Laser Resurfacing?

A CO₂ laser emits light at 10,600 nm. Water absorbs this wavelength strongly. Since skin contains water, the laser can remove tiny columns of tissue and create controlled heat below the surface.

Traditional fully ablative resurfacing removes the whole treated surface. Fractional CO₂ treats a grid of tiny zones instead. Skin between those zones stays intact and helps healing.

The word “fractional” does not mean the treatment is always light. A provider can change the depth, density, energy and number of passes. Scar treatment may be much stronger than a light sun-damage treatment.

What Does CO₂ Laser Work Best For?

Fractional CO₂ is most useful when texture and structural skin change are central to the problem. Common uses include atrophic acne scars, etched wrinkles, rough texture, selected surgical scars and cumulative sun damage.

For acne scars, recent reviews still support fractional CO₂ as an effective option. A 2026 meta-analysis found similar scar-score improvement when CO₂ was compared with needling treatments. Some outcomes favored CO₂. The study also found more post-inflammatory hyperpigmentation, or PIH, than with standard microneedling.

That tradeoff matters. The strongest resurfacing treatment is not automatically the best treatment for every person.

When Is CO₂ Laser Not the Best First Choice?

CO₂ is not automatically the right answer for every brown spot, red mark or patient who wants better skin.

Melasma can worsen after heat or inflammation. A single brown spot may respond better to a pigment laser or IPL. Mild texture may respond to Erbium or microneedling with less downtime. Deep acne scars may need subcision or a combined plan instead of simply using more laser energy.

For the narrower question of UV damage, read our 7 facts to know before booking CO₂ laser for sun damage.

Fractional CO₂ vs. Fully Ablative CO₂

Who Is a Good Candidate?

A good candidate has a concern that fits ablative resurfacing. They can follow wound care and sun protection and understand the downtime.

An active infection in the treatment area is a strong reason to postpone treatment. Experts also commonly delay elective CO₂ treatment after major recent sun exposure or burns, and during pregnancy or breastfeeding.

Darker skin is not an automatic exclusion. More melanin can raise the risk of PIH. Settings, skin preparation, aftercare or even the choice of device may need to change.

What Happens During Treatment?

The skin is cleansed and numbed. Protective eyewear is required. The provider then passes the laser over the planned area using settings chosen for the concern, skin type and desired depth.

Patients usually feel heat, prickling or sharp warmth. Numbing cream and cooling are common. Stronger treatments may need more pain control.

Afterward, the skin is red, warm and swollen, and wound care starts immediately.

What Is CO₂ Laser Recovery Really Like?

At Skin Works, a typical fractional facial treatment is planned around about 5 to 7 days of visible healing. More aggressive settings can take longer.

During the first few days, redness, swelling, warmth and pinpoint crusting are common. Flaking and peeling follow as the surface heals. Redness may remain after the skin has closed, especially after deeper treatment.

For a detailed timeline, see our CO₂ laser healing guide and the broader laser resurfacing recovery guide.

When Do Results Appear?

Surface texture may look smoother after the early healing phase, but that is not the final result. Collagen remodeling continues for months.

For scars and deeper texture, improvement should be judged over a longer window. Some patients reach their goal after one stronger session. Others do better with a planned series or a combination approach.

Results can remain visible for years, although skin continues to age and new sun damage can develop. Our laser resurfacing longevity guide explains what tends to persist and what can return.

What Are the Main Risks?

Expected short-term effects include redness, swelling, warmth, peeling, crusting and temporary sensitivity.

More serious risks include infection, acne or milia flares, long-lasting redness, darkening or lightening of the skin, and scarring. Risk changes with depth, skin type, medical history, aftercare and technique.

Facial resurfacing can reactivate herpes simplex virus. Many experienced laser doctors use preventive antiviral medicine for facial CO₂ treatment, especially when a patient has a relevant history.

Is CO₂ Laser Safe for Darker Skin Tones?

It can be used in selected darker skin tones, but the balance of benefit and risk changes. PIH matters more, and aggressive settings can cause avoidable problems.

A 2026 meta-analysis found more PIH with fractional CO₂ than with standard microneedling for acne scars. That does not mean CO₂ should never be used. Skin tone, scar type and downtime should guide the choice.

For some patients, microneedling or RF microneedling may offer a different safety and recovery profile.

CO₂ vs. Erbium: Which Is Better?

Neither is universally better.

CO₂ usually leaves more heat in the tissue and has a long track record for deeper sun damage and acne scars. Er:YAG is absorbed even more strongly by water and leaves less heat behind. That can mean faster recovery in some settings.

A 2026 review found that fractional CO₂ was more likely than erbium-based lasers to reach greater than 50% acne-scar improvement. But the result was less certain when only randomized studies were analyzed. No device wins every comparison.

How Much Does Fractional CO₂ Laser Cost at Skin Works?

Skin Works standard Torrance pricing as of September 2026 is below. Promotions and package pricing can change, so the service page should remain the source for current offers.

For what changes the total and how CO₂ compares with Erbium pricing, see our laser resurfacing cost guide. For current treatment options, see the Fractional CO₂ Laser service page.

Questions Worth Asking Before You Book

Ask whether the treatment is fractional or fully ablative. Ask what the settings are meant to treat and how many sessions are realistic. Ask how your skin type changes risk, what wound care is needed, and what happens if pigment change or infection occurs.

Also ask whether another treatment would make more sense. A good consultation should sometimes lead to a different procedure.

Frequently Asked Questions