Thank you for your question. Coolsculpting and Zerona are very different technologies, with different goals and indications. Coolsculpting uses cryolipolysis, with a specific cold temperature used to trigger elimination of fat cells. This reduces fat in targeted areas, and permanently removes the treated fat cells. Coolsculpting has predictable and lasting results.
Zerona is used by some for reduction of body circumference. It is combined with diet modification, and does not target specific areas. In addition, since the fat cells are shrunk and not eliminated, the results may not be permanent.
So the two treatments are not interchangable. They work differently, and should be used differently. In my Albany, NY practice, I favor Coolsculpting, as I have been consistently impressed with the results in properly selected patients.