Fractional CO2 Recovery, Day by Day: What the Two Weeks Actually Look Like

A fractional CO2 laser drills thousands of microscopic columns of controlled injury through the skin, leaving untreated tissue between them. As those columns heal, new collagen is laid down and the surface contracts slightly. That is the resurfacing effect, and nothing else available does it as thoroughly.

It is also the treatment I turn down most often.

Where it works, and what else reaches that depth

Almost every "which laser should I have" question resolves once you can see that these devices are not competing at the same depth.

A peel and an IPL never leave the upper dermis. IPL is a pigment and vessel tool with essentially no effect on texture. A non-ablative fractional laser heats the dermis without removing tissue, which means less downtime and less change per session. Radiofrequency microneedling reaches deeper than any of them because the needle depth is a setting, and focused ultrasound skips everything above its focal points entirely.

Fractional CO2 occupies the range where old sun damage, etched fine lines, texture and mild laxity actually live. That is why the results are what they are, and it is also why the recovery is what it is. The two are the same fact.

Who it suits

Three things decide candidacy.

Skin type. The risk that matters is post-inflammatory hyperpigmentation. In darker skin types, a treatment that produces controlled injury across the whole face carries a real chance of leaving pigment behind that takes months to resolve. That does not make CO2 off the table, but it changes the settings, the pre-treatment, and honestly the risk-benefit conversation.

What is actually wrong. CO2 addresses the surface and the upper dermis. It does very little for descent and nothing for volume. Someone whose complaint is a jowl and a hollow midface will not get what they want from a laser, and will have spent two weeks recovering to find that out.

Whether you can take the downtime seriously. This is the one people underestimate, so the rest of this page is about it.

Before the treatment

If you are prone to cold sores, you take an antiviral before we start. A resurfaced face is an ideal surface for a herpes outbreak, and an outbreak across healing skin is how you get a scar.

Anything medicated comes out of your skincare at least a week beforehand, and after the treatment nothing goes on your face except what we tell you to put there.

Day by day

This is the honest version, and it describes one aggressive pass — the treatment I actually do. It is deliberately not a series of light sessions. Light passes do roughly what a superficial peel does, which is a real thing but almost never the thing people come to me for. The aggressive setting is what reaches deep enough to change a deep line, so the recovery below is the price of the result being visible.

Day 0. The numbing wears off and it burns. Many people also itch. The skin is bright red immediately.

Days 1 to 3. This is the worst of it and I would rather you hear it now than discover it. The skin oozes, then crusts, then scabs. It is bright red and swollen. You look exaggerated and frankly alarming, like your face has been burned — because in a controlled sense it has.

Two things run continuously through this window. Aquaphor, to keep everything moist so the crusts and scabs do not build. And vinegar soaks, which keep the tissue clean, settle the inflammatory response, and lift the crusting off as the skin heals underneath. You are also on a steroid through this stretch, particularly if we did a deep plane face and neck lift at the same sitting.

Days 4 to 5. The oozing is easing. What is left is an intense red and a lot of swelling. Do not plan anything. Do not go outside into sun. If you would mind someone looking at you strangely, do not plan to be looked at.

Day 7. The oozing and crusting are essentially finished. You are left with skin that is a bright, intense red, and that color is what takes weeks to go.

Day 10. Foundation covers enough to go out if you need to.

Day 14. Restaurant ready, with a lot of foundation.

Week 6. We photograph you. There is often still some pink, sometimes splotchy. That is expected, and it is not a complication.

Month 3. Most of it is gone.

What people underestimate

The healing time, every time. Most patients are fine with the idea of a week or two. What catches them is day ten to day fourteen, when the crusting is long gone and the skin is still unmistakably pink, and it stays that way for weeks more. That is the moment people get frustrated.

If the redness is intense and persisting, a short course of a steroid cream can help, and it is worth reviewing what you are putting on your face at home, because a product you have gone back to too early is a common cause.

Who I will not treat, and how I decide

Post-inflammatory hyperpigmentation is the complication that matters here, and the risk runs with skin type. In darker skin types I generally do not recommend fractional CO2 at all.

For someone sitting on the border between Fitzpatrick II and III, I test. We laser a small inconspicuous area — behind the ear, or on the neck or chest — and watch it over the following weeks. If that patch pigments, we do not laser the face. It costs a few weeks to find out, and it is a great deal cheaper than discovering it across someone's cheeks.

Where the treatment goes wrong

Four patterns account for most of the poor outcomes I see.

Treating the wrong problem, discussed above. Treating skin that has not been prepared, particularly where pigmentation is a risk. Settings chosen for a brochure result on skin that could not tolerate them. And patients who did not grasp what days one to six involve, stopped the aftercare, and had a healing problem as a result.

None of those are failures of the technology.

The question worth asking your provider

If you have been told you are a candidate, the useful follow-up is why. A provider who can name which of your specific findings this treatment addresses, and which of them it will not touch, is thinking about your skin. A provider whose answer is that it improves everything has told you something about their practice.