In short. CO2 laser resurfacing suits texture, fine lines, sun damage and the surface irregularity of some scars, in skin that can heal without pigment problems and in a month that can give up the first five to seven days. It is a poor tool for sagging tissue, lost volume and pigment deep in the skin.
Key points
- Three things decide candidacy: the problem, the skin and the healing week.
- Resurfacing changes the surface of the skin and the collagen underneath.
- It suits texture, fine lines, sun damage and some scar irregularity.
- It is a poor tool for sagging, lost volume and deep pigment.
- A week that cannot be arranged is a reason to wait or choose smaller treatment.
Three things decide candidacy
The question is not whether CO2 resurfacing works. It is whether it works for you, in your skin, in the month you can realistically give up. Three things decide that: the problem you want changed, the skin you bring to it, and whether the healing week is genuinely available.
What resurfacing changes, and what it does not
Resurfacing changes the surface of the skin and the collagen underneath. It suits texture, fine lines, sun damage and the surface irregularity of some scars. It is a poor tool for sagging tissue, for lost volume, and for pigment sitting deep in the skin, where removing the surface does not reach it and can make it worse.
Why the problem comes before the treatment
People who do well can usually point at what bothers them. They say the skin around my mouth has creased, or the scarring on my cheeks shows in photographs. People who do less well describe a feeling instead: tired, older, not myself.
What does your skin bring to the decision?
Skin type matters here more than in most aesthetic treatments. Resurfacing removes the surface layer, and skin that produces pigment easily can over-produce it as it heals. That post-inflammatory hyperpigmentation is more common and more stubborn in darker skin, and it can take months to settle. Recent sun exposure, melasma-type pigment and a history of keloid scarring all raise the risk further.
When is the healing week the deciding factor?
Most people who regret resurfacing do not regret the result. They regret not having understood that the first five to seven days are raw, weeping and socially impossible, and that pinkness afterwards can persist for weeks. If that week cannot be arranged, the honest plan is a smaller treatment or a later month.
When should treatment wait?
Active acne, eczema, a rosacea flare, infection or open lesions are reasons to wait rather than reasons to abandon the idea. So is anything that slows healing, and so is a tendency to bleed.
| Concern | What resurfacing does | Limit | What it means for candidacy |
|---|---|---|---|
| Texture, fine lines and sun damage | Changes the surface and the collagen underneath | Pigment risk still applies | A problem resurfacing suits |
| Surface irregularity of some scars | Changes the surface and the collagen underneath | Pigment risk still applies | A problem resurfacing suits |
| Sagging tissue | Does not lift it | A poor tool for sagging | A different plan serves better |
| Lost volume | Does not restore it | A poor tool for lost volume | A different plan serves better |
| Pigment deep in the skin | Removing the surface does not reach it | Can make it worse | Not a resurfacing problem |
| A general feeling of looking tired or older | Described as a feeling rather than a named problem | People who describe a feeling do less well | Name the problem before deciding |
Who should be told no
There are patients for whom the correct advice is not to treat. Someone whose main concern is sagging should be told plainly that a different plan serves them better. Someone who cannot keep the sun off the skin afterwards is buying a result that fades, and possibly a pigment problem that does not. Someone expecting to look like a photograph of themselves at twenty-five is likely to be disappointed however well the treatment goes.
What a consultation should establish
If you can name the problem, accept the week and protect the skin afterwards, you are probably a candidate. If any one of the three is missing, the most useful part of a consultation is the part that says so. A clinic that turns nobody away is not assessing anybody.
Sources
- American Society for Laser Medicine and Surgery: patient information on laser and energy-based treatment
- American Academy of Dermatology: guidance on laser resurfacing and post-inflammatory hyperpigmentation
- Cochrane Library: systematic reviews relevant to skin resurfacing
Source links open each organisation's search results for the topic. Document-level confirmation is pending the reviewer's sign-off.
Internal links
Frequently asked questions
How do I know whether my problem is one resurfacing can change?
Point at it. If what bothers you is the surface of the skin — texture, fine creasing, sun damage, the way light falls across old scarring — resurfacing addresses it. If the problem is tissue that has moved downwards, volume that has gone, or pigment sitting deep in the skin, removing the surface does not reach it. A clinician should be able to say which of those you have before discussing a plan.
Is there an age limit for CO2 resurfacing?
There is no fixed age, and a birthday is not a clinical finding. What matters is the quality of the skin and how well it heals, which varies enormously between people of the same age. Very young skin rarely has the problem resurfacing solves, and skin that heals slowly carries more risk at any age. The assessment is about the skin in front of the clinician.
Can I have resurfacing if I have darker skin?
Often yes, but the plan changes. Darker skin has a pigment system that reacts more strongly to controlled injury, so treatment is usually lighter, staged over more sessions, primed for longer beforehand and protected strictly afterwards. Some patients are advised against deeper treatment altogether. Anyone told that pigment change cannot happen in their skin has not been assessed properly.
Risks & Limitations
- The treated surface is usually open for five to seven days, weeping and crusting, with redness that persists for weeks afterwards.
- Post-inflammatory hyperpigmentation is the commonest unwanted effect; it is more frequent and more stubborn in darker skin and can take months to settle.
- Pigment loss (hypopigmentation) is uncommon but can be permanent, and there is no reliable way to restore pigment that has been lost.
- Infection of open skin, which is why antiviral cover is ordinarily prescribed; increasing pain after the third day, spreading redness or fever needs same-day review.
- Scarring, uncommon but real, and more likely after infection, after treatment that was too deep for the skin, on the neck, and in people with a keloid tendency.
- The improvement is long-lasting but not permanent, and sun exposure after treatment fades it faster than anything else.
When to Seek Care
- Increasing pain after the third day, or one area much hotter and more swollen than the rest of the treated skin.
- Fever, spreading redness, or discharge from the treated area.
- Blistering, dusky or grey patches, or a sore that is not crusting like the rest of the face.
- A cold sore erupting across healing skin, which should be reported the same day.
- Swelling that makes it difficult to see, or any new change in vision, which needs urgent review.
References & Further Reading
- American Society for Laser Medicine and Surgery (ASLMS) — patient information on laser and energy-based treatment
- American Academy of Dermatology (AAD) — guidance on laser resurfacing and post-inflammatory hyperpigmentation
- National Institute for Health and Care Excellence (NICE, UK) — relevant guidance on skin treatments
- Cochrane Library — systematic reviews in skin resurfacing and scar management
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.