SculpSure are 2 applicators not as effective as 4?

You have been misinformed.  The principle of fat removal is that only the fat directly under the applicator will be absorbed from induced cell death from the laser energy. You can only put one applicator over every area, so the only difference between two and four applicators is the surface treated, not the depth. If an area is small and only needs two applicators to cover it, two is the correct number to use. Up to four applicators can be used at once, and that is based on the area of coverage desired. Some abdomens may require twice as many applicators as others, depending on the size of the patient and where the excess fat is distributed.  Also each applicator is programmed to deliver the same energy fluence.  This is how the science dictates how much energy is enough but not too much.  It would be illogical to have a multiple of the proper energy delivered depending on whether less than four applicators were used.  This would result in an unsafe higher energy and this is not  the  way the machines are designed.

Thank you for your question. The procedure itself is a very simple. The applicators are simply placed on the areas to be treated, and the laser begins to disrupt the subcutaneous fat cells, heating them and prompting the body to dispose of them. I suggest that you move forward and consult with a board certified facial plastic surgeon to determine your candidacy.
Best wishes,

The applicators for Sculpsure are simply a unit of surface area. Larger areas require more applicators. The energy is not increased or decreased by the number used.As always, discuss your concerns with a board certified plastic surgeon (ABPS).