20 Years of Cryo: What Changes When a Technology Becomes Part of the Practice?
From Cryo 5 to Cryo 7, Joel L. Cohen, MD reflects on two decades of Zimmer MedizinSystems cold-air skin cooling at AboutSkin—and shares one very personal treatment story.
By Regina West; September 21, 2026


Some technologies enter a medical practice because they are new. Others remain because, over time, they become part of how the practice works.
For Joel L. Cohen, MD, Zimmer MedizinSystems Cryo falls firmly into the second category.
Since purchasing his first Zimmer MedizinSystems chiller in 2006, Dr. Cohen has used cold-air skin cooling alongside an evolving range of dermatologic and aesthetic laser procedures and other treatments—from Vbeam® pulsed-dye laser, IPL/BBL, and fractional thulium treatments to Halo®, fractional CO2 and erbium laser resurfacing, RF microneedling, and PRP scalp injections. When A to Z News interviewed him in 2022, he said that original 2006 system was still in use and had “rarely needed fixing” over the years.
Twenty years after that first purchase, the technology remains part of the procedural workflow at AboutSkin Dermatology and Aesthetics. Dr. Cohen says a Cryo 5 is still in use today, alongside several Cryo 6 systems and his newest addition, Cryo 7.
That history makes his latest video less a first impression of a new device than the newest chapter in a long relationship with the technology.
A to Z News Interview with Joel Cohen, MD
In this follow-up to our 2022 conversation, Dr. Cohen discusses how Cryo fits into his practice today, the practical refinements he appreciates about Cryo 7, focused cooling, and the generations of Zimmer MedizinSystems Cryo systems still in use at AboutSkin.
A to Z News: When we spoke with you in 2022, you described Zimmer MedizinSystems Cryo as an integral part of how you manage patient discomfort during many dermatological procedures. Four years later, how has the role of cold-air cooling evolved in your practice?
JC: I continue to use Zimmer [MedizinSystems] Cryo systems in my practice for many, many aesthetic procedures. These devices are really key in helping many patients through procedures like non-ablative fractional lasers and even PRP injections in the scalp.
A to Z News: In your new video, you highlighted several practical details of the Cryo 7—the small footprint, quiet operation, ability to communicate with the patient while it’s running, and integration with laser adapters. Taken together, what separates a cooling device that is simply present in the treatment room from one that becomes truly integrated into your procedural workflow?
JC: I would add that Cryo 7 also has an arm that raises the Zimmer MedizinSystems hose. All of these new additions are really helpful. Keeping the hose raised and the quieter airflow are both attributes that I appreciate every day. And it is easier to access the filter and clean as well.
A to Z News: Laser and energy-based treatments have continued to evolve since we last spoke in 2022. Have newer technologies, treatment techniques, or combination approaches changed the way you use cold-air cooling—or introduced situations where you’re using it differently than you did four years ago?
JC: We have patients stick around and use the Zimmer [MedizinSystems] Cryo units after procedures as well, including non-ablative procedures as well as ablative laser resurfacing.
A to Z News: You mentioned that one advantage of the quieter Cryo 7 is being able to continue talking with the patient during treatment. From your perspective, how does real-time communication—and being able to gauge a patient’s comfort as you’re working—factor into the way you conduct a procedure?
JC: The Cryo 7 allows me to talk to the patient during the entire treatment. We can hear each other and don’t have to raise our voices or turn off the unit to communicate.
A to Z News: You also pointed out the Cryo 7’s focusing tip. In what situations does being able to concentrate the cooling more precisely become particularly valuable—for example, because of the treatment area, anatomy, or type of procedure?
JC: The focusing tip can be helpful in various situations, including around the mouth or nose, to avoid a patient feeling like they are in a wind tunnel.
A to Z News: When we spoke in 2022, you told us that the first Zimmer MedizinSystems Cryo unit you purchased in 2006 was still in use. We have to ask four years later—is it still operating today? And looking across the Cryo systems you’ve added over the years, how has your setup evolved?
JC: I have a Cryo 5 that is still in use today, a few Cryo 6 units, and then my new favorite Cryo 7—quieter, small footprint, easy to move, with an arm to raise the hose.
About Joel L. Cohen, MD, FAAD, FACMS
Joel L. Cohen, MD is Director of AboutSkin Dermatology and Aesthetics and AboutSkin Research in metropolitan Denver. An internationally recognized expert in aesthetics and skin cancer, he is board-certified in dermatology and fellowship-trained in lasers, aesthetic dermatology, and Mohs/dermatologic surgery. He has led global task forces on lasers, energy-based devices, and injectable aesthetic treatments and has authored more than 336 medical articles and book chapters, as well as co-authoring three academic textbooks.
Visit Dr. Cohen’s biography at AboutSkin Dermatology and Aesthetics


