Erbium YAG resurfacing
Er:YAG ablation · 'cold' laser peel · Sciton Contour
Erbium is enjoying a second life as the 'cold' or 'gentle' resurfacing laser in content aimed at people who want CO₂-type results with less redness, and Sciton's tunable erbium platforms feature heavily in US dermatology marketing.
Search interest: about 200 searches a month in Singapore for “erbium laser” (Ahrefs, October 2026).
Erbium removes exactly what you tell it to and little more; whether that is better than CO₂ depends on whether you wanted the heat.
Reviewed against the Aesthetics International standard. Category: Lasers.
Does Erbium YAG resurfacing work?
Established. Erbium removes exactly what you tell it to and little more; whether that is better than CO₂ depends on whether you wanted the heat. A 2017 systematic review of comparative studies found CO₂ and erbium give similar wrinkle improvement, with erbium healing faster and causing less prolonged redness, and an RCT the same year reported comparable efficacy for fractional versions.
- Verdict
- Established Long clinical track record. Results depend on selection and technique more than on the device.
- Evidence base
- 4 PubMed-indexed studies cited below, including systematic reviews, randomised trials.
- Suits
- Fine lines, superficial sun damage and uneven texture in people who want a faster recovery than CO₂; precise work around the mouth and eyes; lighter 'refresh' peels between deeper treatments.
- Not for
- Deep tethered scars or laxity, where heat-driven remodelling does more than pure ablation. Active acne, infection or untreated melasma.
- In Singapore
- Erbium YAG platforms from several manufacturers are HSA-registered and doctor-operated in Singapore; the 'cold peel' label is marketing, not a regulatory category.
- Category
- Lasers · about 200 searches a month in Singapore for “erbium laser”
- Reviewed
- 1 October 2026 by Aesthetics International. Revised as evidence and regulation change.
What it is
A 2,940 nm erbium-doped YAG laser that is absorbed by water about ten times more strongly than CO₂, so it removes skin in very thin, precise layers with little heat left behind. It is used fully ablative for fine peels and deep lines, fractionally for texture and scars, and in long-pulse modes that add controlled heat for tightening.
How it works
Because almost all the energy goes into vapourising tissue rather than heating it, erbium produces less collateral coagulation than CO₂: less redness and faster healing, but also less of the heat-driven tightening and more bleeding at depth. Modern platforms tune the pulse to add heat when it is wanted. The physician chooses micron depth, coagulation level and coverage, which is what separates a lunchtime 'micro-peel' from a deep resurfacing.
What the evidence says
A 2017 systematic review of comparative studies found CO₂ and erbium give similar wrinkle improvement, with erbium healing faster and causing less prolonged redness, and an RCT the same year reported comparable efficacy for fractional versions. A randomised comparison in photoaged Asian skin found fractional erbium improved texture more than non-ablative 1550 nm with acceptable pigment risk. A 2020 systematic review across phototypes supports its use for rejuvenation, spots and acne scars. Evidence for the long-pulse 'tightening' modes is thinner and mostly manufacturer-associated.
What people are saying
Paraphrased from public discussion on TikTok, Instagram, Reddit and in the press. Not testimonials, and not about any one clinic. Reported in: asds.net, realself.com.
What the studies show
- systematic review
Comparative studies showed similar wrinkle improvement with both lasers, with erbium associated with faster healing and shorter erythema.
A systematic review of comparative studies of CO(2) and erbium:YAG lasers in resurfacing facial rhytides (wrinkles). — J Cosmet Laser Ther, 2017. PMID 28166434.
- RCT
Fractional CO₂ and fractional Er:YAG produced comparable wrinkle improvement, with differences in downtime and side-effect profile.
Efficacy and safety of fractional CO(2) laser versus fractional Er:YAG laser in the treatment of facial skin wrinkles. — Lasers Med Sci, 2017. PMID 27885522.
- RCT
In photoaged Asian skin the ablative erbium laser improved texture more than the non-ablative 1550 nm laser, with more downtime and a manageable pigment risk.
A prospective, randomized, double-blind comparison of an ablative fractional 2940-nm erbium-doped yttrium aluminum garnet laser with a nonablative fractional 1550-nm erbium-doped glass laser for the treatment of photoaged Asian skin. — J Dermatolog Treat, 2015. PMID 26417998.
- systematic review
Both erbium lasers were effective for rejuvenation, spots and acne scarring across phototypes, with parameters adjusted downward for darker skin.
Efficacy, safety, and guidelines of application of the fractional ablative laser erbium YAG 2940 nm and non-ablative laser erbium glass in rejuvenation, skin spots, and acne in different skin phototypes: a systematic review. — Lasers Med Sci, 2020. PMID 32472427.
Studies are selected for relevance and quality, not for agreement with the verdict; PubMed records are linked so the reader can check them.
Who it suits
Suits
Fine lines, superficial sun damage and uneven texture in people who want a faster recovery than CO₂; precise work around the mouth and eyes; lighter 'refresh' peels between deeper treatments.
Not for
Deep tethered scars or laxity, where heat-driven remodelling does more than pure ablation. Active acne, infection or untreated melasma.
Alternatives
The two reviewed treatments most often weighed against Erbium YAG resurfacing, on the same standard.
| Erbium YAG resurfacing | Fractional CO₂ resurfacing | Pico laser | |
|---|---|---|---|
| Verdict | Established | Established | Vetted |
| What it is | A 2,940 nm erbium-doped YAG laser that is absorbed by water about ten times more strongly than CO₂, so it removes skin in very thin, precise layers with little heat left behind. | A 10,600 nm carbon dioxide laser vapourises columns of skin in a grid, leaving intact skin between them to speed healing. | A picosecond laser delivers energy in pulses a thousand times shorter than the nanosecond lasers that came before it. |
| Evidence base | 4 PubMed-indexed studies cited below, including systematic reviews, randomised trials. | 4 PubMed-indexed studies cited below, including systematic reviews. | 4 PubMed-indexed studies cited below, including systematic reviews. |
| Suits | Fine lines, superficial sun damage and uneven texture in people who want a faster recovery than CO₂; precise work around the mouth and eyes; lighter 'refresh' peels between deeper treatments. | Atrophic acne scars, etched lines around the mouth and eyes, sun-damaged texture and surgical scars in people who can take a week of visible recovery. | Sun spots, freckles, post-acne marks, tattoo ink, uneven tone in Asian skin when energy is set conservatively. |
| In one line | Erbium removes exactly what you tell it to and little more; whether that is better than CO₂ depends on whether you wanted the heat. | The laser is a controlled injury; the skill is choosing how deep and how dense for this skin, not how much the machine can do. | The variable that matters is depth, not brightness, and pigment already deposited is only half the problem; the inflammation producing it is the other half. |
Risks
Redness, swelling and pinpoint bleeding for days; post-inflammatory darkening in darker skin; rare infection or scarring with deep passes.
In Singapore
Erbium YAG platforms from several manufacturers are HSA-registered and doctor-operated in Singapore; the 'cold peel' label is marketing, not a regulatory category. Erbium-glass (1540/1550 nm) is a different, non-ablative laser used in our Luminescence and FSX protocols.
“Erbium removes exactly what you tell it to and little more; whether that is better than CO₂ depends on whether you wanted the heat.”
Vetted protocols on the same problem
Questions
Erbium or CO₂?
What is a 'cold' laser peel?
Is erbium suitable for darker skin?
Cite this review
Aesthetics International (2026). Erbium YAG resurfacing: does it work? Evidence, risks and verdict. https://aesthetics-international.org/treatments/erbium-yag-resurfacing/ (reviewed 1 October 2026).
Editorial, unpaid and independent of any manufacturer. Verdict: Established. See what works and what doesn't across all 153 reviews. Spotted an error or a newer study? Suggest a correction — changes are logged on the corrections page. Terms are defined in the glossary.
Where this review is used
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