Why does it take 4-8 weeks for the results from cool sculpting to be noticed? What is happening internally until then?

Fat cells that are frozen undergo apoptosis and die a natural death.  Those cells are removed through a natural process that occurs over 2-3 months.

Thanks for your question. When an area is treated, through a process called cyrolipolysis, the fat cells are crystalized and gradually die. Over time your body processes the fat and eliminates these cells from your body using the body's natural processes. Thus it takes several weeks to fully realize your results. We recommend a minimum of two CoolSculpting treatments per area for great results. Some patients desire more than two treatments.