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Erbium Laser vs CO₂ Laser: Which Skin Resurfacing Is Right for You?

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When you’re laser skin resurfacing, two names the conversation: the erbium YAG laser and the CO₂ laser. Both ablate damaged surface skin to . Both deliver improvements in fine lines, scarring, sun damage and texture. But they’re engineered around wavelengths, and that single technical cascades into very different profiles, comfort levels and safety margins.

At Centre for Surgery, our laser specialists use the Fotona SP Pro erbium platform for all at our Baker Street private hospital. This guide how the two systems compare, when each is appropriate, and why Er:YAG is the right default choice for most patients in 2026.

The technical difference in one sentence

The CO₂ laser emits light at 10,600 nm; the Er:YAG laser at 2,940 nm. Water — the of skin — absorbs Er:YAG energy roughly 10 to 15 times more efficiently. That means Er:YAG water-rich tissue almost instantly with very little spillover heat, while CO₂ deposits more thermal energy into surrounding skin as it the .

Both lasers resurfacing; the is between depth of effect and of . For the underlying tissue in more detail, see our deeper guide to the .

CO₂ laser resurfacing: deep, dramatic, demanding

The CO₂ laser has been the for resurfacing since the 1990s. Its longer penetrates further into the dermis, and the additional effect collagen and remodelling. For patients with deep static wrinkles, skin or atrophic acne scarring, a single fully ablative CO₂ can produce that look .

That power comes at a cost. CO₂ recovery runs 14 to 21 days of social downtime, with persistent erythema that can linger for weeks or months. The risk of hyperpigmentation is — particularly in skin types IV to VI, where it can be both more prevalent and longer-lasting. Hypopigmentation, where treated skin loses pigment permanently, is a rare but documented complication. Because the thermal margin is wider, the demands an operator: that work beautifully on light, sun-tolerant skin can cause real harm on darker complexions or thinner areas like the neck.

For who tolerate the recovery and fall in the right candidacy window, CO₂ remains powerful. For most patients, the calculation now favours erbium.

Erbium laser resurfacing: precise, safe, faster healing

The Er:YAG laser approaches the same skin concerns from the direction: vaporise tissue cleanly with heat, and rely on a series of precisely controlled passes to reach the desired depth. With the Fotona SP Pro, our can dial pulse duration from 100 ( cold ablation, almost no thermal effect) up to 1,000 microseconds (added effect for collagen tightening). That tunability is the platform’s advantage — one device can deliver from a light texture refresh to deep resurfacing, with the adjusting energy in real time to suit the area and the skin type.

The are . Recovery runs five to ten days for fractional protocols and 10 to 14 days for fully ablative full-face. Redness fades faster. The risk is markedly lower, making Er:YAG far safer in olive and darker skin tones. Discomfort is reduced, and many are under topical anaesthetic alone.

Er:YAG is also exceptional on delicate areas — around the eyes, on the neck, on the décolletage — where the higher thermal load of CO₂ creates a real risk of or pigment loss.

Side-by-side: which laser for which problem

The honest answer is that the conditions overlap substantially. Both lasers can treat the same indications. What changes is the recovery curve and the safety margin.

Recovery side-by-side

For deciding the two approaches, the recovery comparison usually it.

For the full week-by-week arc and aftercare guidance, see our companion guide on . For makeup and timing during the window, see our guide to . Many also ask — the short answer is that anaesthetic technique makes the itself comfortable, but the first 48 hours of healing involves real but manageable soreness.

What happens during your treatment

Your first is a consultation. We your skin, discuss what you want to change, take a thorough medical history, and the laser protocol that best fits your concerns, skin type and tolerance. If you’ve been using retinoids, are on or isotretinoin, or have a of cold sores, we’ll adjust the plan accordingly.

On treatment day, the skin is cleansed and a topical cream is for around 30 to 45 . Deeper may add infiltrative local . Protective eye shields are placed. itself takes 30 to 90 minutes depending on the area and protocol. The sensation during is a warm tingling or mild stinging; immediately after, the skin feels like a sunburn. A mask and are applied before you leave.

You go home with detailed written aftercare instructions: how to cleanse, what ointment to apply and how often, sun protection requirements, and warning signs to watch for. Strict daily SPF 50 use is essential for at least three months — the new skin is highly photosensitive and unprotected sun during this window can cause that’s hard to reverse.

Combining laser with other treatments

One of the we lean towards Er:YAG is that it pairs well with other modalities for patients wanting rejuvenation:

For an of how Fotona’s range of fits together, see our guide on .

Who is a good candidate

The ideal candidate for Er:YAG laser resurfacing:

with significant skin laxity or volume loss may benefit more from — , , — sometimes followed by Er:YAG to address skin .

What we don’t recommend

A few honest editorial positions:

Frequently asked questions

Neither is universally better — they answer different questions. For most patients in 2026, Er:YAG offers a better of results, safety and . CO₂ remains an option for very indications, but is rarely our first .

For most concerns, one to three sessions spaced four to six weeks apart deliver results. Fully ablative full-face treatment is a one-off, with via SMOOTH® thereafter.

Surface improvements can last five years or more. The natural ageing continues, so maintenance — — extend benefit indefinitely.

Pricing (The-Laser-Aesthetics.Co.uk) depends on depth and area. Focal resurfacing starts around £600; full-face fractional ranges £1,500 to £3,000; fully ablative full-face £3,000 to £6,000. We offer .

It’s possible but rarely necessary. The range of the Fotona SP Pro is wide enough that we can everything from gentle refresh to deep ablation on one without in a CO₂ system.

Our Baker Street private hospital is built around the Fotona SP Pro — one of the most advanced Er:YAG in use. Treatments are by experienced laser specialists in a CQC-regulated environment, with the full safety of a private . Every is to your skin type, downtime and goals — there is no laser at our clinic.

Centre for Surgery · CQC-regulated · GMC · · · ·

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Centre for Surgery is a CQC-regulated private on London’s Baker Street, delivering plastic and cosmetic through GMC-registered specialist surgeons. Our spans facial procedures and , , for men, and body procedures such as and . Patient safety, surgical excellence and natural-looking results sit at the heart of everything we do.

Centre for Surgery is a CQC-regulated private on London’s iconic , plastic and surgery led by GMC-registered .

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