CO2 vs erbium laser resurfacing for scars

CO2 and Er:YAG are the two resurfacing lasers set side by side here for acne scars. A scar is a cosmetic concern, so the first question is less about the device and more about the clinic: what happens if the skin does not settle the way it was meant to? For how the two technologies differ, the PMC review Current Laser Resurfacing Technologies: A Review that Delves Beneath the Surface is the technical reading, and Acne Scarring—Pathogenesis, Evaluation, and Treatment Options puts scars in context.

How the clinics are ordered

The order follows Non-surgical treatments offered, the count each provider lists on its own published services page, highest first. CosMedic LaserMD holds first place with 40 treatments listed on cosmediclasermd.com. The table below covers ranks one through four. The count says nothing about which lasers a clinic owns, how it uses them, or how it handles a problem afterward.

Ranks one through four at a glance

What each row means

CosMedic LaserMD has the longest menu, and its Google profile shows a 4.9 rating across 165 reviews. A long menu gives you more treatments to ask about, and it does not tell you which laser suits scars.

Cosmetic Skin & Laser Center is the only provider in this table based in Chelsea. Its profile shows a 4.8 rating across 76 reviews. Where a clinic is based matters if a result needs a return visit.

Radiance Beauty Lab shows a rating of 5 across 80 reviews. Read the written reviews along with the stars.

Med 1 Aesthetics shows a 4.9 rating across 378 reviews, the largest review count in the table.

If a laser result goes wrong

This page does not rule on which laser is better for scars. That decision belongs to the clinician who examines your skin. For a wider view, read the systematic review of fractional CO₂ laser against needling-based modalities and a dermatology reference page, Acne Scars And How To Get Rid Of Them.

The first steps do not change with the device. Contact the clinic that treated you, take a dated photo, and write down which laser was used. If you think you are in danger, call 911.

Two questions for the consultation

1. Which laser would you use on my scars, and why that one?
2. If my skin does not heal as expected, who do I call and how soon?

Our recommendation

Pick the clinic by how it answers those two questions, not by menu length. The ranking is useful while you are building a shortlist and stops being useful once you are comparing one device with another, because the count never says which devices are on the menu. Put both questions to two of the four in the same words and go with the clinic whose answers you can follow.