Brazilian Butt Lift may take from 4 to 6 hours depending on the amount of liposuction and how many sites of liposuction, then purifying the fat and then injecting that fat in a three dimentional manner. With more than one surgeon may take less time, because they are doing liposuction simultaneously.
A so-called Brazilian Butt lift is nothing more than expertly injecting fat into the buttock compartments for optimal contour and fat survival. There is a finite limit on the amount of fat that can be successfully injected and ultimately survives, which varies from patient to patient, and is very dependent on the analysis of the surgeon performing the procedure to determine the optimal amount. In my experience most average size women do not require more than 200-300 cc of augmentation per side. Any more than that does not increase the amount of fat survival and can actually decrease the fat survival and cause complications of fat necrosis not to mention painful. The liposuction procedure should only take an hour to an hour and a half. The processing of the fat and reinjection should take another hour.