Maximizing patient outcomes, avoiding complications and increasing control of laser-assisted lipolysis procedures are all benefits that can be achieved with real time, subdermal, internal temperature measurement. Improper technique can obviate the benefits of internal temperature monitoring, thus proper use of internal temperature monitors must be employed. This paper highlights the proper technique for the use of subdermal, real time temperature monitoring during laser-assisted lipolysis. In addition, an optimal design for the TempASSURE™ cannula and temperature sensor are described.