Does CO2 Laser Resurfacing Help With Acne Scar Removal? #

If your acne has finally cleared but you’re still left with dents, uneven texture, or scars that show more in certain lighting, you may be wondering:

Can CO2 laser resurfacing actually remove acne scars?

CO2 laser resurfacing can significantly improve the appearance of certain acne scars, particularly atrophic or depressed acne scars. It works by resurfacing damaged skin and stimulating collagen remodeling beneath the surface.

But there is an important distinction:

CO2 laser can improve acne scars. It usually cannot completely erase them.

And not every acne scar should be treated with the same procedure.

The best results come from first identifying what type of acne scar you have and what is causing the depression in the skin.

How Does CO2 Laser Help Acne Scars? #

Acne scars can form when inflammation from acne damages collagen within the skin.

If insufficient collagen is produced during healing, the skin may develop a depression.

Fractional CO2 laser creates controlled microscopic treatment zones in the skin.

This triggers a healing response that encourages:

• Collagen remodeling
• New collagen formation
• Smoother skin texture
• Softening of scar edges
• Remodeling of irregular scar tissue

As the skin heals and remodels, depressed scars may gradually become shallower and blend more smoothly with the surrounding skin.

Does Research Support CO2 Laser for Acne Scars? #

Yes.

Fractional CO2 laser is a well-established treatment for atrophic acne scarring.

Clinical studies and systematic reviews have found meaningful improvement in acne scars after fractional CO2 treatment, although results vary considerably depending on scar type, treatment parameters, skin type, and number of sessions.

This is important because acne scarring is not one condition.

Two patients can both say:

“I have acne scars.”

But their scars may require completely different treatment plans.

What Types of Acne Scars Can CO2 Laser Treat? #

Depressed acne scars are generally divided into three major categories:

Rolling Scars #

Rolling scars create broad, shallow depressions that can make the skin look wavy or uneven.

Some rolling scars respond well to resurfacing.

However, many rolling scars are tethered underneath the skin by fibrous bands.

If the scar is tethered, resurfacing the top of the skin without releasing the attachment underneath may provide limited improvement.

This is where subcision may become important.

Boxcar Scars #

Boxcar scars are round or oval depressions with more defined edges.

Shallower boxcar scars may respond well to fractional CO2 resurfacing because the laser can help soften the edges and remodel the surrounding tissue.

Deep boxcar scars may require a more aggressive or combination approach.

Ice-Pick Scars #

Ice-pick scars are narrow but extend more deeply into the skin.

Because the scar tract can be deeper than the area effectively addressed with standard fractional resurfacing, CO2 alone may not be the best treatment.

Other scar-specific techniques may need to be considered.

Which Acne Scars Respond Best to CO2 Laser? #

Generally, fractional resurfacing tends to be more useful for:

• Shallow rolling scars
• Superficial boxcar scars
• Overall uneven acne-scar texture
• Mixed superficial atrophic scarring

Deep scars may be more challenging.

This is why we do not simply laser every acne scar.

The treatment has to match the scar.

Can CO2 Laser Completely Remove Acne Scars? #

Usually not.

Patients sometimes search for “acne scar removal,” but complete removal is not a realistic expectation for most established scars.

A more appropriate goal is acne scar improvement.

Treatment may make scars:

• Shallower
• Smoother
• Softer around the edges
• Less shadowed
• Less noticeable in different lighting

The amount of improvement varies from patient to patient.

Why Do Acne Scars Look Worse in Certain Lighting? #

Acne scars often become much more noticeable under overhead or directional lighting.

Why?

Because depressed scars create shadows.

Even relatively small depressions can cast shadows that make the texture appear deeper.

This is why improving the transition between the scar and surrounding skin can make a meaningful visual difference even if the scar does not completely disappear.

The goal isn’t necessarily perfectly flat skin.

It is often to create smoother transitions and fewer visible shadows.

What Is Subcision for Acne Scars? #

Subcision treats acne scars differently from laser resurfacing.

A specialized needle or cannula is introduced beneath an appropriate depressed scar to release fibrous attachments that are pulling the skin downward.

Think of a tethered scar like a small area of skin being anchored from underneath.

You can resurface the top repeatedly.

But if the attachment remains underneath, the depression may remain.

Subcision addresses the tethering.

CO2 addresses the skin and scar remodeling.

For the right scar pattern, the two approaches can complement each other.

How Do I Know If My Acne Scars Need Subcision? #

Rolling scars that appear tethered may benefit from evaluation for subcision.

One clue can be how the scar behaves when the surrounding skin is stretched.

But scar assessment should be performed clinically because patients often have several scar types at the same time.

For example, one cheek might contain:

Rolling scars + boxcar scars + ice-pick scars.

That patient may need more than one treatment method.

CO2 Laser vs Subcision for Acne Scars #

These procedures are not really competitors.

They solve different problems.

CO2 Laser #

Primarily addresses:

• Surface irregularity
• Scar edges
• Texture
• Collagen remodeling
• Superficial-to-moderate atrophic scars

Subcision #

Primarily addresses:

• Tethered scars
• Depressed rolling scars
• Fibrous attachments underneath scars

If a scar is tethered, simply increasing the laser intensity may not solve the underlying problem.

Sometimes the answer is not more laser.

It is a different treatment.

Can You Combine Subcision and CO2 Laser? #

In appropriately selected patients, acne-scar treatment may involve a combination or staged approach.

For example:

Subcision ? releases tethering

CO2 resurfacing ? improves texture and stimulates remodeling

Other treatments may also be incorporated depending on the scar pattern.

The sequence and timing should be individualized.

CO2 Laser vs Microneedling for Acne Scars #

Microneedling is another collagen-induction treatment commonly used for atrophic acne scars.

It creates controlled mechanical microinjuries rather than ablating the skin with laser energy.

Microneedling can be a good option for:

• Mild acne scars
• Uneven texture
• Patients who want less downtime
• Patients for whom pigmentation risk is an important consideration

Fractional CO2 may provide stronger resurfacing for certain scars, but that potential benefit comes with more inflammation, downtime, and pigmentation risk.

The stronger procedure is not automatically the better procedure.

CO2 Laser vs RF Microneedling for Acne Scars #

RF microneedling combines microneedles with radiofrequency energy.

It may be useful for certain:

• Rolling scars
• Boxcar scars
• Uneven texture
• Deeper remodeling needs

CO2 has a stronger surface-resurfacing component.

RF microneedling delivers energy deeper while creating less surface ablation.

Which treatment makes sense depends on:

• Scar type
• Scar depth
• Skin type
• Pigmentation history
• Desired downtime

What About PRF for Acne Scars? #

PRF may be used as part of a regenerative approach to support tissue healing and collagen-related treatment plans.

But PRF should not be viewed as a replacement for correcting the structural cause of a scar.

If a scar is tethered, it may still need to be released.

If significant surface irregularity is present, resurfacing may still be needed.

This is why combination treatment can sometimes make more sense than trying to make one procedure do everything.

Is CoolPeel Good for Acne Scars? #

CoolPeel is a lighter fractional CO2 resurfacing approach.

It may improve:

• Mild acne-scar texture
• Superficial irregularities
• Enlarged-looking pores
• Overall skin texture

while offering a more manageable recovery.

But deeper acne scars may require stronger remodeling than a very superficial CoolPeel can provide.

If someone has significant boxcar or rolling scars, repeatedly performing a very light treatment may not be the most efficient strategy.

CoolPeel vs Deeper CO2 for Acne Scars #

A lighter CoolPeel and deeper fractional CO2 use the same broader CO2 technology but create different tissue effects.

Lighter CoolPeel #

May make sense for:

• Mild scarring
• Texture
• Superficial irregularities
• Patients prioritizing shorter downtime

Deeper Fractional CO2 #

May be considered for:

• More established atrophic scars
• Deeper textural irregularities
• Greater collagen-remodeling needs

Greater treatment intensity generally means greater downtime and risk.

The goal isn’t to use the deepest setting possible.

It is to use the appropriate treatment for the scar.

How Many CO2 Laser Treatments Are Needed for Acne Scars? #

There is no universal number.

Some patients may see meaningful improvement after one stronger resurfacing treatment.

Others may benefit from a series of fractional treatments.

The number of treatments depends on:

• Scar type
• Scar depth
• Scar severity
• Skin type
• Treatment intensity
• Healing response
• Desired improvement

Combination treatment may also change how many laser sessions are needed.

When Will Acne Scars Improve After CO2? #

Don’t judge the final result immediately after your skin heals.

Initially, you may notice improvement in overall texture.

But collagen remodeling takes longer.

Improvement can continue over the following weeks and months as the skin remodels.

This is particularly important with acne scars because the goal is not simply exfoliation.

We’re trying to encourage structural remodeling within scarred skin.

Does More Peeling Mean Better Acne-Scar Results? #

No.

A dramatic recovery does not automatically mean you received a better treatment.

Laser settings need to balance:

Treatment effect + healing + safety.

More redness, swelling, or peeling does not guarantee more collagen or greater scar improvement.

Is CO2 Laser Safe for Darker Skin With Acne Scars? #

This requires additional consideration.

Fractional CO2 can cause post-inflammatory hyperpigmentation (PIH), and the risk can be higher in melanin-rich or pigment-prone skin.

That does not mean everyone with darker skin is automatically excluded.

But treatment planning may need to be more conservative.

In some patients, treatments such as microneedling or RF microneedling may offer a more favorable risk-benefit balance.

What If I Have Acne Scars and Hyperpigmentation? #

Acne scars and post-acne discoloration are different problems.

You may have:

A depressed scar ? texture problem

and

A dark mark ? pigmentation problem.

They may exist in the same area but require different strategies.

CO2 may improve texture while pigmentation needs its own carefully planned treatment.

Treating them as though they are the same thing can lead to disappointing results.

Should Active Acne Be Controlled First? #

Usually, the treatment plan should address active inflammatory acne before aggressively resurfacing established scars.

Otherwise, you may be treating old scars while new scars continue forming.

A long-term acne-scar plan therefore begins with:

Control the acne ? identify the scars ? treat the scar type.

What Are the Risks of CO2 Laser for Acne Scars? #

Potential side effects can include:

• Redness
• Swelling
• Dryness
• Peeling
• Crusting
• Temporary sensitivity
• Acne or milia flare
• Infection
• Cold sore reactivation
• Post-inflammatory hyperpigmentation
• Hypopigmentation
• Prolonged redness
• Delayed healing
• Rare scarring

Risk depends on skin type, treatment intensity, medical history, treatment area, and aftercare.

Who Is a Good Candidate for CO2 Acne-Scar Treatment? #

Fractional CO2 may be worth considering if you have:

• Atrophic acne scars
• Rolling scars
• Shallow-to-moderate boxcar scars
• Uneven acne-scar texture
• Enlarged-looking pores alongside scarring

and your skin type, pigmentation history, medical history, and expectations make resurfacing appropriate.

When Is CO2 Laser Not Enough? #

CO2 may not be enough when there are:

• Deep ice-pick scars
• Strongly tethered rolling scars
• Very deep boxcar scars
• Significant volume loss beneath scars
• Multiple scar types
• Active acne

These cases often benefit from a multimodal acne-scar plan.

Why Combination Treatment Can Be Better for Acne Scars #

One of the biggest mistakes in acne-scar treatment is trying to force one device to treat every scar.

Imagine someone has:

Tethered rolling scars + boxcar scars + uneven surface texture.

One procedure may not address all three components.

A treatment plan might involve:

Subcision ? release tethered scars

Fractional CO2 ? resurface and remodel texture

Microneedling or RF microneedling ? additional collagen remodeling when appropriate

PRF ? regenerative support when appropriate

The exact combination should be individualized.

More treatments don’t automatically mean better results. Better treatment selection does.

Will My Skin Ever Be Completely Smooth? #

Perfectly poreless, scar-free skin is not a realistic goal.

Even people who have never had acne have natural skin texture.

A better goal is:

Shallower scars.

Smoother transitions.

Less shadowing.

More even texture.

Healthier-looking skin.

You should still look like yourself—just with skin that appears smoother and more refined.

So, Does CO2 Laser Resurfacing Help With Acne Scar Removal? #

Yes. Fractional CO2 laser resurfacing can significantly improve the appearance of certain acne scars, particularly atrophic rolling and boxcar scars.

It works by resurfacing damaged skin and stimulating collagen remodeling.

But CO2 usually does not completely remove acne scars.

And it may not be the right standalone treatment for:

• Tethered rolling scars
• Deep boxcar scars
• Ice-pick scars
• Active acne
• Certain pigment-prone skin types

The best acne-scar treatment begins by identifying the scar.

Not every depression needs a laser.

Sometimes it needs resurfacing.

Sometimes it needs subcision.

Sometimes it needs deeper collagen remodeling.

And sometimes it needs a combination.

The treatment has to match the scar.

A Skin-Forward Approach to Acne Scars at AIVI Aesthetics #

At AIVI Aesthetics, we don’t automatically put every acne-scar patient through the same laser treatment.

We first evaluate:

What type of scars do you have?

Are they shallow or deep?

Are they tethered?

Is pigmentation also present?

Is there still active acne?

What is your skin type and pigmentation risk?

From there, we can build a treatment plan based on the actual scar pattern.

Depending on your skin, that may include CoolPeel, deeper Tetra Pro CO2 resurfacing, acne-scar subcision, Vivace RF microneedling, SkinPen microneedling, PRF, or a staged combination approach.

Our goal isn’t to promise perfectly scar-free skin.

It’s to create meaningful improvement while protecting the health of your skin.

Considering CO2 Laser for Acne Scars in Agoura Hills? #

If you’re bothered by rolling scars, boxcar scars, uneven skin texture, enlarged-looking pores, or other post-acne changes, schedule a personalized acne-scar consultation at AIVI Aesthetics.

We’ll evaluate your individual scar pattern and determine whether CoolPeel, deeper Tetra Pro CO2 resurfacing, subcision, Vivace RF microneedling, SkinPen microneedling, PRF, or combination treatment makes the most sense for your skin.

AIVI Aesthetics serves patients throughout Agoura Hills, Westlake Village, Thousand Oaks, Calabasas, Oak Park, Woodland Hills, and surrounding Conejo Valley communities.

Call: (818) 851-9900

Schedule: https://aiviaesthetics.com/contact-aivi-aesthetics/

This article is for general educational purposes and is not individualized medical advice. Acne-scar treatment results, risks, downtime, and appropriate treatment methods vary based on scar type, scar depth, skin type, pigmentation history, medical history, treatment intensity, and individual healing.