Fractional CO2 · Pores

Fractional CO2 laser for pores and texture:
the resurfacing route and its trade-off

Medically reviewed by Dr Sin Yong · Last reviewed · 8 min read

Published 7 October 2026 · Reviewed by Dr Sin Yong

Close view of a young woman's cheek with uneven texture in soft light, an illustrative image

Fractional CO2 laser for pores and texture vaporises microscopic columns of skin at 10,600 nm so the surface between pores is resurfaced and the dermis beneath remodels; it suits pores set within rough, etched texture or shallow scarring. The trade-off is a visible healing phase and a higher pigment risk in Asian skin than RF microneedling carries.

Illustrative image of facial skin texture in angled light, not a patient
Illustrative image. Resurfacing changes the surface between pores; the openings themselves remain.
Key facts
Platform
DEKA SmartXide Tetra Pro, a 10,600 nm fractional CO2 laser with pulse shape control
What it changes
The rough surface between pores and the collagen beneath, so edges blend and shadows soften
What it does not change
Pore count or gland size; oil output; nose pores that are oil-driven
Compared with RF microneedling
Surface removed versus surface spared; longer visible healing; higher pigment risk in Fitzpatrick III to V
When CO2 is the route
Pores within coarse or etched texture, shallow boxcar scarring, settled lighter-toned or well-prepared skin
Fee
Set in writing after assessment; see how fees are quoted

What does a fractional CO2 laser do to a pore?

A fractional CO2 laser resurfaces the skin around a pore rather than the pore itself. The DEKA Tetra Pro, the fractional CO2 laser used here, emits at 10,600 nm, a wavelength absorbed by water, and vaporises microscopic columns of skin while leaving intact skin between them, so the surface heals from the surrounding tissue and the dermis beneath remodels with new collagen. On a cheek where the pores sit within rough or etched texture, that resurfacing blends the edges of each opening into a smoother surface and firms the collagen collar beneath, which is what makes the pores read smaller.

What it leaves alone is the structure. A pore is the fixed opening of a follicle and its oil gland, and no laser removes the gland, reduces the count or switches off oil. The enlarged pores treatment page sets out the three causes of large pores; fractional CO2 answers the texture and lost-support causes, and not the oil one.

When is fractional CO2 chosen for pores rather than RF microneedling?

Fractional CO2 is chosen when the surface itself is the problem: pores set within coarse, etched or orange-peel texture, shallow boxcar scarring between them, or a cheek where the skin surface needs to be rebuilt rather than only supported from beneath. Because ablation reaches the scar edges and the surface together, it can do in one plan what dermal heating alone does not, and the Tetra Pro's pulse shape control lets ablation go deep and narrow at a scar edge and shallow and wide across texture.

RF microneedling is chosen when the surface is reasonably smooth and the problem is support: elongated cheek pores in oily, acne-prone or darker skin, where energy delivered beneath an intact epidermis carries less pigment risk and a shorter visible recovery. The RF microneedling page describes that route, and the two are not rivals; a plan may resurface first and remodel later, or reserve CO2 for the zones where texture is worst. The decision is made by examining the surface in angled light and the skin's pigment history, not by preference for a machine.

“Nothing shrinks a pore. Refinement is real; erasure is a marketing claim.”

Dr Sin YongOn texture and pores

What is the recovery trade-off between the two?

The trade-off is visible healing against reach. Fractional CO2 creates open micro-wounds, so the treated skin is red, swollen and weeping at first, then crusts and flakes as the surface re-forms, and it stays pink for a period that depends on density, depth and the person; make-up, swimming, saunas and strong exercise wait until the surface has closed. RF microneedling leaves pinpoint marks and redness over an intact surface, which settle sooner. Neither recovery length is promised in advance, because both depend on settings chosen for the skin on the day.

The healing phase is also where the pigment risk lives. Sun on healing skin, picking at crusts and restarting acids or retinoids too soon each add inflammation to skin that has been deliberately injured, so written aftercare and strict sun protection are part of the treatment rather than an afterthought. The S3 Resurfacing Lift page describes what to expect after fractional CO2 in more detail.

Fractional CO2 laser and RF microneedling for pores and texture, compared
FactorFractional CO2 (Tetra Pro)RF microneedling (Secret Duo)
How energy reaches the dermisLight vaporises columns through the surfaceNeedles carry radiofrequency beneath an intact surface
Effect on the surfaceOpen micro-wounds that crust and flakePinpoint marks; surface largely spared
SuitsPores within rough, etched texture; shallow boxcar scarsCheek pores from lost support; oily, acne-prone or darker skin
Pigment risk in Fitzpatrick III to VHigher; needs preparation, conservative density and strict sun avoidanceLower with insulated needles; settings still conservative
Visible healingUsually the longer of the two; redness and flakingShorter; redness and pinpoint marks
Not forOil-driven nose pores, active acne, recently tanned skinOil-driven nose pores, blocked pores, active acne

Why does fractional CO2 need more caution in Asian skin?

Fractional CO2 needs more caution in Fitzpatrick III to V skin because the injury passes through a melanin-rich epidermis and the inflammation that follows readily produces post-inflammatory hyperpigmentation. A study of fractional resurfacing in Asian patients found post-inflammatory hyperpigmentation to be common, with higher treatment density and energy among the risk factors, which is why settings validated on lighter skin are a starting point here and not an answer.

The caution is practical rather than a prohibition. The skin is prepared beforehand, often with a topical regimen a doctor prescribes after assessment; density and energy are kept conservative, a test area may be treated first, treatment is deferred over a recent tan or active acne, and sun avoidance afterwards is strict. A history of darkening after a previous laser, melasma, recent isotretinoin or a tendency to keloid each change the plan or point towards RF microneedling instead. Where darkening does follow, it tends to fade with time and protection and is reviewed rather than treated over.

What are the other risks, and what determines the fee?

Beyond pigment change, the risks of fractional CO2 are those of an ablative wound: prolonged redness, infection if the surface is not kept clean, a cold sore outbreak around the mouth, which is why antiviral cover is discussed for those with a history, an acne or milia flare, and, uncommonly, lines of demarcation or scarring where energy was stacked or the skin was keloid-prone. Increasing pain, spreading yellow crusts, pus, fever or blistering should be reported the same day, and the complication care page lists the signs that need prompt attention.

The fee depends on the zones treated, whether the whole face or the cheeks alone, the density and depth the texture calls for, whether fractional CO2 stands alone or is staged with RF microneedling, subcision or pigment work, and how the plan is reviewed. Singapore's rules prevent clinics from advertising prices, so no figures appear here; a written quote follows assessment, as the how fees are quoted page explains, and the consultation decides whether resurfacing is the right route at all.

Frequently Asked Questions

No. A pore is the fixed opening of a follicle and its oil gland, and resurfacing changes the surface around it and the collagen beneath, not the opening itself. The pores can look smaller because their edges blend and cast less shadow; they are not closed.

Seldom as the main step, because nose pores are oil-driven and resurfacing does not change the gland. Oil control and gentle clearing matter more on the nose. Cheek texture and pores are where fractional CO2 earns its recovery.

Yes, in sequence or in different zones. A plan may resurface the areas where texture is worst and remodel the rest beneath an intact surface, with the order and interval set at assessment so that one healing phase has finished before the next treatment.

It varies with density, depth and the person, and no duration is promised. The surface closes first, then pinkness fades gradually; darker skin may show temporary darkening as well. Written aftercare covers each phase, and timing for make-up and exercise is given on the day.

It is used in Fitzpatrick III to V skin with preparation, conservative density and strict sun avoidance, but the pigment risk is higher than with RF microneedling and is weighed at assessment. A history of darkening after lasers or melasma may point towards the needle route instead.

References

The prevalence and risk factors of post-inflammatory hyperpigmentation after fractional resurfacing in Asians. Lasers in Surgery and Medicine, 2007. source

Carbon dioxide laser treatment. DermNet, 2023. source

Fractional laser treatment. DermNet, 2023. source

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