CO2 laser is the stronger treatment and Halo is the easier one, and the right choice comes down to whether your concern needs depth or needs surface work. CO2 reaches further into the dermis and delivers more correction per session at the cost of about a week of visible healing. Halo delivers both an ablative and a non-ablative wavelength in one pass, producing resurfacing-level improvement with peeling that usually finishes by day five. This article compares wavelength, depth, pain, downtime, pigmentation risk, and candidacy, then places both against MOXI, BBL, Fraxel, and radiofrequency microneedling so you can see where each one actually belongs.
One thing worth saying up front: we run both devices. Most comparisons you will find online are written by practices that own one of them, and the conclusions tend to match the equipment in the room. We have no reason to prefer either.
Is Halo a CO2 Laser?
Halo is not a CO2 laser. Halo is a hybrid fractional laser that combines a 1470 nm non-ablative diode wavelength with a 2940 nm ablative erbium wavelength, while a CO2 laser uses a single 10,600 nm wavelength. Different wavelengths, different manufacturers, different behavior in tissue.
The confusion is understandable, since both are called resurfacing lasers and both fractionate the skin into treated and untreated columns. Fractional delivery is a technique, not a wavelength, and several very different devices use it.
What each wavelength does with water is the real dividing line. All three of these wavelengths are absorbed by water in the skin, and how strongly they are absorbed determines how much tissue vaporizes versus how much simply heats.
What Is the Difference Between Halo and CO2 Laser?
The difference between Halo and CO2 laser is that Halo treats the epidermis and dermis with two separate wavelengths tuned independently, while CO2 does both jobs with one wavelength that ablates and heats simultaneously. Halo lets a provider dial surface ablation and deep coagulation separately, which is what produces resurfacing results on a shorter recovery. CO2 couples them together, which is what produces more change per session.
Halo’s ablative erbium wavelength is deliberately limited, removing 20 to 110 microns of epidermis, while its non-ablative wavelength coagulates from 100 all the way to 700 microns into the dermis. The deep work happens without deep surface removal.
CO2 does not separate those functions. Its energy ablates and spreads heat through surrounding tissue at the same time, which reaches deeper structures more aggressively and takes considerably longer to heal. Both devices sit in our laser skin treatments menu because they solve different problems.
What Is the Difference Between Erbium and CO2 Laser Resurfacing?
Erbium resurfacing ablates precisely with almost no surrounding heat, while CO2 resurfacing ablates with significant thermal spread into nearby tissue. Erbium at 2940 nm is absorbed by water roughly ten times more strongly than CO2 at 10,600 nm, so it vaporizes tissue cleanly instead of heating the neighborhood. That single property explains most of the practical differences.
Clean ablation means faster healing and less risk of thermal injury, which is why erbium-based treatments generally carry shorter recovery. It also means less collagen contraction, since contraction is a heat effect.
CO2’s thermal spread is a feature rather than a flaw. Bulk heating drives more collagen contraction and a stronger wound healing response, which is exactly what deep scarring and established wrinkles need. Halo captures both behaviors by pairing precise erbium ablation with a separate wavelength doing the deep heating.
Is Halo Laser as Effective as CO2 Laser?
Halo is as effective as CO2 for pigment, tone, texture, and pore size, and it is less effective for deep wrinkles and significant scarring. No published head-to-head trial comparing Halo directly against CO2 exists, so anyone quoting a precise percentage for one beating the other is citing marketing rather than research. What we do have is solid separate evidence on each.
The Halo evidence comes from a multi-center trial published in the Journal of Drugs in Dermatology. Of the subjects completing the study, 80 percent showed significant improvement on photographic analysis reviewed by six blinded evaluators, and 100 percent reported satisfaction with their results after two treatments spaced four to six weeks apart.
| Factor | Halo | Fractional CO2 |
|---|---|---|
| Wavelength | 1470 nm non-ablative plus 2940 nm ablative | 10,600 nm |
| Ablation depth | 20 to 110 microns, epidermis only | Deeper, with thermal spread beyond the ablated column |
| Coagulation depth | Tunable 100 to 700 microns | Coupled to ablation, not independently set |
| Visible downtime | Peeling finishes around day 4 or 5 | Erythema averages 5.2 days, scabbing 4.1 days, full arc 1 to 2 weeks |
| Pain during treatment | Average 4 of 10 | Average 3.3 of 10 premedicated, 4.1 without |
| Typical sessions | 1 to 2 | Often 1 for general resurfacing, 2 to 3 for scarring |
| Best suited to | Sun damage, pigment, tone, texture, pore size | Deep wrinkles, established scarring, advanced photodamage |
| Pigmentation risk | 2 PIH cases across a Fitzpatrick I to IV trial, resolved within 90 days | 1.1 percent PIH in a 856-treatment review, far higher in deeper skin tones |
Sources: Waibel, Pozner, Robb and Tanzi, “Hybrid Fractional Laser: A Multi-Center Trial on the Safety and Efficacy for Photorejuvenation,” Journal of Drugs in Dermatology, 2018; Annales de Dermatologie et de Vénéréologie retrospective analysis of 46 fractional CO2 treatments; fractional resurfacing safety review of 856 treatments; Sciton clinical documentation.
Read the table as a description of tradeoffs rather than a scoreboard. Halo wins on recovery and pigment safety, and it does not reach what deeper ablation reaches.
For patients with pronounced acne scarring or deep static lines around the mouth and eyes, CO2 laser resurfacing remains the stronger answer, and we say so rather than steering people toward the easier recovery.
How Painful Is a CO2 Laser Compared With Halo?
CO2 and Halo produce similar pain during treatment, both landing around 4 on a 10-point scale. The Halo multi-center trial recorded an average numeric pain score of 4, while a retrospective analysis of 46 fractional CO2 treatments recorded 3.3 with topical anesthetic premedication and 4.1 without. The comfort difference between these two treatments is not in the chair.
Both use topical numbing cream, and both involve heat with prickling rather than sharp pain. Halo’s handpiece includes integrated air cooling that runs throughout the treatment.
The comfort difference shows up afterward. CO2 recovery involves several days of tightness, itching, and crusting that Halo largely skips, so the harder part of CO2 is the week rather than the half hour.
How Do Recovery Timelines Compare?
Halo recovery runs about half the length of CO2 recovery. Halo peeling finishes around day four or five with makeup usually possible the day after treatment, while CO2 runs one to two weeks of visible healing with makeup typically waiting until the skin has fully closed. That gap is the single most common reason patients choose one over the other.
CO2 healing follows a defined arc of swelling, crusting, peeling, and then weeks of fading pinkness. Our full breakdown of CO2 recovery maps every stage against what is happening in the tissue.
Halo healing centers on the bronzing phase, when treated cells surface and shed. The stage-by-stage detail sits in our guide to Halo recovery.
Which Is Safer for Darker Skin Tones?
Halo is generally safer for darker skin tones than CO2, though neither is off the table with appropriate settings. Post-inflammatory hyperpigmentation is the risk that matters here, and how a device delivers heat changes how likely it is. The published numbers vary enormously depending on which population was studied.
- Halo trial data. Across a population spanning Fitzpatrick types I through IV, two subjects developed post-inflammatory hyperpigmentation, both resolving within 90 days, with no other adverse events reported.
- CO2 in lighter skin tones. A review of 856 fractional treatments found hyperpigmentation in 1.1 percent of cases and prolonged erythema in 1.8 percent, with no long-term problems.
- CO2 in deeper skin tones. A 65-patient series in a predominantly higher-Fitzpatrick population recorded persistent erythema in 46.15 percent and post-inflammatory hyperpigmentation in 44.61 percent. That gap is settings and skin type, not a contradiction in the research.
- Melasma history. Resurfacing can aggravate melasma at any skin tone, and that history changes the plan before it changes the device.
- Recent sun exposure. Treating tanned skin raises pigmentation risk with either device, which is why we defer rather than adjust.
Provider settings matter as much as device choice. Deep FX can be used on darker skin tones with conservative parameters, and Halo intensity is fully operator-controlled, so the assessment matters more than the machine.
What Age Is Best for CO2 Laser Treatment, and Is Halo Good for Older Skin?
CO2 laser suits patients from roughly their forties onward when accumulated damage justifies the downtime, and Halo works well across a wider age range including older skin. The Halo trial enrolled subjects with a mean age of 52, so its 80 percent improvement figure came from a population squarely in midlife rather than from young skin with little to correct. Age is a weak predictor on its own.
Patients in their thirties usually get more from Halo, since concerns at that stage tend to be pigment, tone, and early texture change. Reaching for full CO2 resurfacing on skin with minimal damage buys downtime without buying much correction.
Patients in their fifties and sixties with significant sun damage often benefit from either, and the deciding factor becomes whether deep lines are part of the picture. Where they are, CO2 earns its recovery week.
What Is the Best Laser for a 60 Year Old Woman?
The best laser for a 60 year old woman is the one matched to her primary concern rather than to her age. Sun damage and uneven tone point toward Halo, deep wrinkles and scarring point toward CO2, and skin laxity points toward neither. The same logic applies at 70 and at 45.
Skin condition varies far more than age does at this stage. Two women the same age can have completely different amounts of accumulated damage depending on sun history, smoking history, and skin type, and the treatment plan should follow the skin.
One age-related factor does matter practically. Healing slows somewhat with age, so recovery timelines at either device tend to run at the longer end of published ranges for older patients.
What Is the Best Laser to Tighten Sagging Skin, and Do Either Tighten Jowls?
Neither Halo nor CO2 is the best laser for sagging skin, and neither tightens established jowls. CO2 produces modest tightening through collagen contraction and a strong healing response, Halo produces mild tightening through dermal coagulation, and both firm the skin envelope without repositioning anything underneath. Jowling is descended tissue, and resurfacing does not lift.
Where laxity is mild and the surface is the main issue, either device improves the overall impression. Where laxity is the dominant concern, energy-based skin tightening reaches the tissue involved in firmness far more directly than a resurfacing laser does.
Being direct about this saves patients a disappointing month three. A resurfacing laser bought to lift a jawline will be judged a failure no matter how well it performs at what it actually does.
Is CO2 Laser as Good as a Facelift?
CO2 laser is not as good as a facelift for lifting, and a facelift does nothing for skin quality. Surgery repositions deeper structures and removes excess skin, while resurfacing rebuilds the quality of the skin that is there. Surgeons frequently combine the two for that exact reason.
Patients weighing the two are usually weighing the wrong pair. The real question is whether the concern is skin quality or skin position, and once that is settled the choice tends to make itself.
FACE does not perform facelift surgery, and when descent rather than surface damage is driving what someone sees in the mirror, we say so.
How Many Times a Year Can You Do a CO2 Laser or Halo?
You can have a CO2 treatment once or twice a year and a Halo treatment two to three times a year, with an initial series spaced closer together. Collagen remodeling continues for months after either treatment, so retreating before that finishes adds inflammation rather than results. Here is how we plan a course:
- Consultation and skin typing. Fitzpatrick type, sun history, melasma history, and the primary concern all get established first.
- Match device to concern. Pigment, tone, and texture go to Halo. Deep lines and scarring go to CO2.
- Match intensity to calendar. Both devices have operator-controlled settings, and downtime scales with them.
- Complete the initial course. Halo typically runs one to two sessions four to six weeks apart. CO2 typically runs one, with a second considered for scarring.
- Reassess at three months. Collagen is still building at this point, so evaluating sooner leads to unnecessary treatment.
- Maintain annually. One session a year roughly offsets a year of new sun exposure for most patients.
Our providers in Bingham Farms set intensity around your actual schedule, since Active FX and Deep FX can be run at very different levels depending on how much recovery time you have.
Can You Do Halo and CO2 Together?
You can do Halo and CO2 in the same treatment plan, spaced across the year rather than combined in one appointment. Running both devices over the same skin on the same day stacks thermal injury without adding proportional benefit and extends recovery well past what either produces alone. Sequencing works better than layering.
A common pattern is CO2 once for the deeper correction, then Halo for maintenance in the following years. The heavy lifting happens once and the upkeep happens on a schedule that fits a normal life.
Zone-based treatment is the other approach. Deeper settings around the mouth where lines concentrate, lighter settings across the cheeks and forehead, all within a single device rather than mixing platforms.
Halo vs MOXI and Clear + Brilliant
MOXI and Clear + Brilliant sit a step below Halo in intensity, with correspondingly less downtime and less correction per session. These are non-ablative or minimally ablative treatments aimed at early pigment, dullness, and prevention rather than at established damage. They suit patients who want maintenance without a peeling week.
MOXI is the natural entry point for younger patients, for anyone treating primarily for prevention, and for those who cannot accommodate any visible downtime at all. It typically needs a series where Halo needs one or two sessions.
The tradeoff is straightforward. Where established sun damage and texture change are already visible, Halo laser treatment produces in one or two sessions what the lighter options need considerably longer to approach.
Halo vs BBL and IPL
BBL and IPL target color while Halo and CO2 target structure, which makes them complementary rather than competing. Broadband light and intense pulsed light deliver light energy absorbed by pigment and blood vessels, treating brown spots and redness without resurfacing the skin at all. Neither improves texture, pores, or fine lines meaningfully.
For a patient whose only concern is brown spots and facial redness, light-based treatment resolves it with no peeling and no downtime. Reaching for a resurfacing laser in that situation is more disruption than the problem requires.
The pairing is where this gets useful. BBL Hero and Halo are frequently performed in the same appointment, with the light treatment handling color and the laser handling texture and depth.
Halo vs Fraxel and ProFractional
Fraxel and ProFractional are fractional resurfacing platforms like Halo, and the meaningful comparison is ablative versus non-ablative rather than brand against brand. Fraxel is a family of devices spanning non-ablative and ablative options, so asking whether Fraxel is stronger than Halo has no single answer until you specify which Fraxel. The category is the useful unit, not the trade name.
Non-ablative fractional devices work beneath an intact surface, keeping downtime minimal and generally requiring a longer series. Ablative fractional devices remove tissue and produce more per session with more recovery.
Halo sits deliberately between those categories by delivering both behaviors in one pass. That positioning is the entire design rationale, and it is what hybrid fractional means.
Halo or CO2 vs RF Microneedling and Morpheus8
Resurfacing lasers work from the surface downward while radiofrequency microneedling works from inside the dermis outward, which makes them complementary rather than alternatives. Lasers own pigment, tone, and surface texture because those live in the epidermis and superficial dermis, while radiofrequency reaches laxity and deeper remodeling that no resurfacing laser addresses. Patients often end up doing both across a year.
For laxity, early jowling, and structural firming, Morpheus8 reaches tissue that Halo and CO2 do not. For sun spots and uneven tone, no needling device competes with a resurfacing laser.
Downtime differs too, with radiofrequency microneedling generally producing one to three days of redness across a series. Our breakdown of RF microneedling results covers that timeline in full.
Is the CO2 Laser Outdated, and Is There Anything Better Than a CO2 Laser?
The CO2 laser is not outdated, and nothing currently available replaces it for deep resurfacing. Fractional delivery transformed CO2 from a two-week ordeal into a treatment with roughly a week of visible healing, and it remains the strongest non-surgical resurfacing option available. Newer is not the same as better.
What has changed is that CO2 is no longer the default. Twenty years ago a patient wanting resurfacing had one real option, and now the honest answer is that most patients concerned with pigment, tone, and texture are better served by something lighter.
Better than CO2 depends entirely on the goal. Laxity goes to radiofrequency or ultrasound-based tightening. Vascular redness goes to light-based treatment. Prevention goes to the gentler end of the laser skin treatments range. Deep wrinkles and established scarring still go to CO2.
Frequently Asked Questions
Which Has More Downtime, Halo or CO2?
CO2 has more downtime than Halo, roughly double. Halo peeling generally finishes by day four or five with makeup possible the day after treatment, while fractional CO2 averages 5.2 days of erythema and 4.1 days of scabbing with a full visible arc of one to two weeks. Deeper settings extend both.
Can Halo Replace CO2 for Acne Scars?
Halo can improve mild acne scarring and does not replace CO2 for established atrophic scars. Deep scar remodeling requires reaching further into the dermis than Halo’s ablative wavelength goes. Patients with rolling or boxcar scarring generally do better with CO2 or with radiofrequency microneedling, sometimes in combination.
How Long Do Results Last With Each?
Results from both treatments last one to several years depending on sun exposure, skin care, and how much correction was achieved. Neither stops aging, and both reset your starting point. Annual maintenance with a lighter treatment preserves the result more comfortably than repeating a full resurfacing session.
Can Either Be Done on the Neck and Chest?
Both can be done on the neck and chest at conservative settings. Skin in these areas is thinner, has fewer oil glands, and heals more slowly than facial skin, so recovery typically runs several days longer than the facial timeline. Settings are reduced accordingly to lower the risk of textural change.
Which Is Better for Large Pores?
Halo is generally the better choice for large pores, since pore appearance responds to surface resurfacing and superficial dermal remodeling rather than to deep ablation. Both treatments improve pore appearance. Halo achieves comparable improvement in this specific area without the recovery week CO2 requires.
Do You Need Antivirals Before Either Treatment?
Antiviral prophylaxis is standard before CO2 resurfacing and commonly used before Halo as well, particularly for anyone with a cold sore history. Herpes reactivation was reported in 10.6 percent of fractional CO2 treatments in one retrospective analysis. Protocols typically start two days before treatment and continue for 7 to 10 days afterward.
What It All Comes Down To
Choose CO2 when the concern is deep: established wrinkles, atrophic acne scarring, or advanced sun damage that has changed the texture of your skin, and you can give up a week. Choose Halo when the concern is surface: sun spots, uneven tone, dullness, pore size, and early texture change, and you need to be presentable in a few days. Choose neither when the concern is sagging, because resurfacing firms skin without lifting it, and a device that was never going to lift will disappoint you no matter how well it performs.
No published trial has put these two head to head, so anyone quoting you a precise percentage for one beating the other is quoting marketing. What we can tell you is what each device does in tissue and what the evidence shows for each on its own, and then match it to your skin and your calendar. Our team in Bingham Farms runs both, which means the recommendation you get depends on your face rather than on which machine we happen to own. If you want help deciding, we would be glad to sort it out with you at a consultation with our team at FACE Skincare~Medical~Wellness.
