Comparing Zeltiq (Cool Sculpting) to Zerona is not accurate at all since the latter is based on a laser targeting the fat cells poorly.
However, the Zeltiq will freeze the fat cells (cryoplipolysis) without affecting other tissues; the fat in the adipocytes (fat cells) will freeze at a controlled temperature inducing cellular apopotisis (programmed cell death) hence a permanent solution.
In summary, Zerona is nowhere comparable to the effectiveness of Zeltiq treatment.
Patients who had different non-surgical fat removal treatments were unsatisfied until they underwent the cool sculpting (Zeltiq).
I hope this helps.
Thank you for your question.
Web reference: http://www.DrSajjadian.com