The CoolSculpting procedure is about an hour per cycle. How long the procedure is will depend on how many treatment areas, and the severity of the issue at that treatment area. We typically recommend more than one cycle per individual area. The fat cells are killed, so there should be permanent reduction. It is still not a license to have a poor diet and not exercise as every fat cell cannot be eliminated. the dead cells are taken up in the usual manner by the body's system, and eliminated. Every patient is different, so best to get a consult from a certified, experienced CoolSculpt office. It is a very nice non surgical option, especially for those who cannot have post surgical downtime.