It is perfectly fine to have Cellulaze and Smartlipo done at the same time, but not on the same area. For example you can do Smartlipo on the deeper fat on the outer thigh area and Cellulaze for cellulite on the back of the thigh. If there is excess fat and cellulite in the same area, I recommend Smartlipo first to reduce the fat and contour the area and then Cellulaze to treat the more superficial layer. I found this gives the best and most consistent results. However, know that neither procedure does well with patients with excessively loose skin. In those cases, a body contouring procedure would be recommended such as a thigh lift or body lift. At your consultation, you and your surgeon will discuss the best plan of action for you. Best of luck.