From Cryo 5 to Cryo 7: Marking 20 Years of the Zimmer MedizinSystems Advantage at Romeo & Juliette Laser Hair Removal

– A to Z News  Video + Bonus Interview

  • “We have been using their devices over 20 years… The cooling is amazing… We find the Zimmer [MedizinSystems] device is amazing, consistent, very reliable, easy to maintain. And we would not change with any other company.”
  • “On average, Romeo & Juliette has cut its skin cooling costs by over 70% with Zimmer MedizinSystems electric cold air systems.”

By Regina West; February 26, 2024

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Read the Q&A – then scroll below for the video featuring Christian Karavolas discussing Zimmer MedizinSystems’ cryo devices and their impact on Romeo & Juliette Laser Hair Removal.

Romeo & Juliette - A to Z News -Cryo

In the heart of New York City, Romeo & Juliette has established itself as a premiere destination for laser hair removal, with the integration of Zimmer MedizinSystems’ Cryo devices playing a key role in their approach to client care. Christian Karavolas, the driving force behind this esteemed facility, also serves as Vice President of the Society of Clinical and Medical Hair Removal. He recently shared insights on Romeo & Juliette’s 20-year partnership with Zimmer MedizinSystems. It began with the original Cryo 5 and has evolved to include Cryo 6 and the latest, the Cryo 7 model. Karavolas emphasized the unrivaled status  of Zimmer MedizinSystems Cryo devices in the realm of improving client comfort and laser treatment efficacy.

Karavolas’ support of Zimmer MedizinSystems’ Cryo devices began with a quest for superior epidermal cooling. “We love the Zimmer [MedizinSystems] devices because we can cool the skin pre-, during, and post-treatment,” Karavolas highlighted in a video demonstration, showcasing the seamless operation of the Cryo 7 alongside a state-of-the-art laser. This integration is essential for mitigating the heat generated by laser treatments, reducing the risk of thermal injury while enhancing the comfort and safety of the client, and thereby improving the overall efficacy of laser procedures.

In a follow-up interview with A to Z News, Karavolas provided additional insights into why he specifically chose  Zimmer MedizinSystems systems. Karavolas traced his first introduction to the cryo devices back to 2002, at meetings for laser professionals and at the American Academy of Dermatology (AAD) convention. “The Zimmer [MedizinSystems] cryos offer better safety during laser treatments… The cold air makes the treatment much more tolerable than other cooling mechanisms,” he remarked. He also noted the remarkable advancements in the devices’ quietness, power, and maintenance simplicity over the years.

The operational benefits of having adopted Zimmer MedizinSystems’ technology are numerous. Karavolas credits the cryo devices with improving client retention and enhancing treatment outcomes, attributing this to the unmatched cooling efficiency that makes treatments a “breeze.” Moreover, the transition from cryogen-based cooling to ZimmerMedizinSystems’ electric localized cryotherapy has yielded notable cost savings. Specifically, Karavolas highlighted that his cost range per laser treatment, when integrating a Zimmer MedizinSytems cryo device runs between $.10 and $2.00, compared to $.25 to $12.00 with cryogen-based chemical methods, reinforcing the value of this technology. He adds, “On average, Romeo & Juliette has cut its skin cooling costs by over 70% with Zimmer MedizinSystems electric cold air systems.”

Karavolas lauds Zimmer MedizinSystems for their client-centered innovation and responsive customer service, stating, “Zimmer [MedizinSystems] is a company that listens to clients and improves the product based on feedback. They always innovate and have outstanding service.” This partnership has not only propelled Romeo & Juliette to the forefront of the laser hair removal industry but also set a benchmark for client care and treatment efficacy.

Watch the A to Z News video with Mr. Karavolas and read the full interview below for more comprehensive insights on the technical and experiential aspects of Cryo by Zimmer MedizinSystems. For more information on Romeo & Juliette Laser Hair Removal, visit

Christian Karavolas provided this video and comments about Zimmer MedizinSystems’ cryotherapy without receiving compensation of any kind.

A to Z News  Exclusive Interview with Christian Karavolas of Romeo & Juliette

A to Z News: Mr. Karavolas, could you share with us how you first discovered Zimmer MedizinSystems and what motivated you to choose our Cryo devices for your laser hair removal treatments?

CK: We discovered Zimmer [MedizinSystems] Cryos in 2002 during the AAD meeting and various laser conventions that we used to attend. We were looking for effective cooling devices for the epidermis during laser hair removal procedures. 

 A to Z News: Before using these Cryo devices, did you employ any other skin cooling techniques? How do they compare in terms of efficacy and client satisfaction?

CK: Before using Zimmer [MedizinSystems] systems we used to use cryogen-based cooling which was costly, cumbersome and in most cases, more painful during the treatment. Clients prefer air cooling over cryogen.

A to Z News: In terms of return on investment (ROI) and operational costs, how do Zimmer MedizinSystems’ electric localized cryotherapy devices compare to other cooling methods that rely on consumables like cryogen canisters or vaporized nitrogen? Could you share insights on the long-term cost savings, and specific health benefits or reduced risks for your clients that you attribute to using electric cryotherapy?

CK: Cryogen is expensive, and if used excessively on certain skin types can cause cryogen marks (burns) that can take a long period of time to heal.

In terms of cost, the Zimmer MedizinSystems devices run on 110V electricity. An average treatment in our facility, if we include all variables, would cost $0.10 per treatment with electric cryo if I do a small treatment like an upper lip. For underarms it would be $0.25.  For full back, it would be around $2.00.

Cryogen pricing per treatment varies depending on what laser is used and length of treatment. At my facility, the average cost of use per treatment would be around $0.25 to $0.50 for an upper lip.  So, for very small treatments, the cost between electric and nitrogen-based is similar.

However, for a full back treatment, with some lasers, nitrogen-based cryo would have a cost range between $6.00 and $12.00 per treatment, depending on cryo variables, settings, as well as canister size.

When we do treatments with a duration of 15-minutes or longer, costs go up dramatically. An average treatment assumes 20-30 minutes. No matter how we look at it, cryogen is on average at least 3 times more expensive than Zimmer MedizinSystems electric cold air treatments. When using cryogen and doing large treatments, cooling costs with cryogen vs. electric can be up to 6 times higher!

On average, Romeo & Juliette has cut its skin cooling costs by over 70% with Zimmer MedizinSystems electric cold air systems.

A to Z News: Having used Zimmer MedizinSystems’ devices for over 20 years, what have been the most significant improvements you’ve observed in the Cryo models from the Cryo 5 to the latest Cryo 7?

CK: We’ve used the Zimmer [MedizinSystems] Cryos for over 22 years. We started with the Cryo 5 and added the Cryo 6 and Cryo 7 models in our facility. We find that the devices have become quieter and more powerful with minimal maintenance needed.

A to Z News: Could you elaborate on how the quietness and sturdy design of the Cryo 7 contribute to the overall treatment experience?

CK: The design of the Cryo 7 enables quieter operation. And it has an improved hose design with a standard arm that gives it a smooth shape. It allows the air to flow freely and makes it last longer. Also, the arm supports the hose and makes it lighter and easier for the technician to operate with the laser.

A to Z News: Could you provide some insights into their long-term reliability and the maintenance process?

CK: The Cryo devices do not need much maintenance. The filter needs to be vacuumed daily and occasionally the device may need to be defrosted in order to give optimum performance.

A to Z News: How do the Cryo devices enhance treatment comfort and safety for your clients, particularly in preventing thermal injuries during laser hair removal?

CK: The Zimmer [MedizinSystems] Cryos offer better safety during laser treatments as they cool the skin pre-, during, and post-treatment. The cold air makes the treatment much more tolerable than other cooling mechanisms.

A to Z News: What has been your clients’ feedback regarding the skin cooling provided by the Cryo devices during their laser hair removal treatments?

CK: Clients love the air cooling. It makes the treatment very tolerable and allows us to treat with optimum settings without hurting the skin.

A to Z News: How has the integration of Zimmer MedizinSystems’ Cryo devices impacted your business, in terms of client acquisition, retention, or overall service quality?

CK: Effective air cooling has made the treatment a “breeze” for our clients and has encouraged them to do more treatments and add more areas. This, in turn, has helped our bottom line.

A to Z News: Can you speak about the training process for your staff in using the Cryo devices? How do they find the usability and functionality of these systems?

CK: Cryo devices are very easy to use. Training needed is minimal. We go over the various cooling speeds, test it on the skin, and use the right setting depending on area treated. And we use client input to adjust settings.

A to Z News: Having used multiple generations of Cryo devices, how would you summarize your overall satisfaction with Zimmer MedizinSystems’ products and customer service?

CK: Zimmer [MedizinSystems] is a company that listens to clients and improves the product based on the feedback they receive. They always innovate and have outstanding service.

About Cryo by Zimmer MedizinSystems

Cryo by Zimmer MedizinSystems

The Zimmer MedizinSystems Cryo System delivers cold air as low as -30 C. In physical therapy, the cooled air can be used for efficient paint treatment, swelling reduction, and muscle relaxation. The system enables cryotherapy with precise placement and at a constant dosage, every time. In aesthetic medicine, the line of Cryo devices is intended to minimize pain and thermal injury during laser and dermatological treatments. The “chiller” provides temporary topical anesthetic relief during injections, tattoo application, tattoo removal, RF, laser hair removal, and much more. Unlike other cooling methods, such as contact cooling, cryogen spray, and ice packs, Cryo by Zimmer MedizinSystems can cool the epidermis before, during, and after the laser energy has been applied, without interfering with the laser beam. For more information about cryotherapy devices by Zimmer MedizinSystems, please view a web overview of the product. You may also contact Zimmer MedizinSystems any time by phone or email.

From Cryo 5 to Cryo 7: Marking 20 Years of the Zimmer MedizinSystems Advantage at Romeo & Juliette