Erbium:YAG and CO₂ are both used for ablative skin resurfacing, but the laser name alone does not determine the result or recovery. When comparing iPixel with a CO₂ treatment, ask about the exact device, whether the treatment is fractional, the proposed intensity and the skin concern being targeted. A fair comparison needs those details.
How are Erbium and CO₂ different?
iPixel is a fractional Er:YAG applicator operating at 2940 nm. CO₂ resurfacing lasers use a different wavelength, commonly 10,600 nm. Both can be used to create small areas of ablation in fractional treatment. Their interaction with skin differs, and the settings influence how much tissue is treated. Alma’s iPixel specifications and a clinical comparison of fractional CO₂ and Er:YAG
Er:YAG is strongly absorbed by water and can leave relatively little residual heat injury around the ablated tissue. That technical characteristic is useful, but it does not make every Erbium treatment gentler than every CO₂ treatment. DermNet on Er:YAG
The iPixel Er handpiece used on the Alma Harmony XL Pro platform at Evolution. The photographs in this article show iPixel, not a CO₂ device.
“Fractional” and “ablative” answer different questions
Fractional describes a pattern of microscopic treatment areas. Ablative describes removal of surface tissue. A laser treatment can be both. Nonablative approaches are a separate category, and “Erbium” is not a sufficiently precise label for comparing all of them. Mayo Clinic’s overview of resurfacing methods
This matters when reading a clinic quotation or an online recovery story. Someone describing a different Erbium-based wavelength, a nonablative treatment or full-field resurfacing may have experienced a substantially different procedure. Before comparing downtime, make sure you are comparing like with like.
Which laser is better for acne scars?
Comparative studies do not support declaring one option best for every patient. In a randomised split-face study involving 24 people, fractional Er:YAG and CO₂ produced improvements without a statistically significant difference in clinical improvement at the reported follow-ups. CO₂ treatment was more uncomfortable in that study. 2013 comparative trial
A separate study of 30 people, published in 2023, found greater improvement with the CO₂ protocol used there after three treatment sessions. The study’s small sample, treatment settings and short final follow-up limit how broadly its results can be applied. It was not a trial proving that every CO₂ treatment outperforms iPixel. 2023 split-face study
The practical inference is to compare a proposed plan for your scars, not a universal ranking of technologies. Ask what evidence and clinical reasoning support the particular recommendation.
Model photography from Evolution’s iPixel shoot shows the handpiece and treatment-room setting; it does not demonstrate a clinical result.
Does Erbium always mean shorter recovery?
No fixed recovery period follows from a brand or wavelength alone. The treated area, coverage, depth and your skin’s response affect the healing burden. Ask the practitioner to distinguish surface healing, visible redness and readiness for your normal routine. For iPixel-specific planning, read our recovery and aftercare guide.
Avoid comparing a light fractional session with intensive resurfacing as though the only difference were the laser name. Ask how the two proposed plans would differ in practical terms: time away from work, product restrictions, sun exposure and follow-up. If a major event is approaching, give the date before agreeing to treatment.
What should a useful comparison include?
Bring the same questions to each consultation:
- Which specific scars, lines or texture changes are you targeting?
- What exact device and handpiece would be used?
- Is the proposed treatment fractional and ablative?
- How will my skin tone, previous reactions and treatment history affect the plan?
- What improvement would make the treatment worthwhile, and when will it be assessed?
- What do the quotation, aftercare and follow-up include?
These questions make two recommendations easier to compare without choosing solely by a headline price or the promise of a stronger treatment.
Where does iPixel fit at Evolution?
Evolution offers iPixel Erbium resurfacing on Alma Harmony XL Pro. This comparison explains treatment choices; it is not a statement that Evolution offers every CO₂ system mentioned in research.
For an introduction, read what iPixel laser resurfacing is. If acne scars are your priority, read how scar type affects an iPixel plan, then contact the clinic for an assessment.
