One of the fastest-growing areas of esthetic medicine is noninvasive body contouring -- and the reason why makes sense. It all comes down to those few things that were just mentioned: People want safe procedures with quick recoveries, few side effects and less discomfort. The Zerona laser, for example, has been proven effective, and is cleared by the FDA for the reduction of circumference of hips, waist, thighs, and, most recently, upper arms. Recent studies indicate that the results of the Zerona laser are long-lasting, if not permanent. With no adverse events reported to date, Zerona appears to be safe and effective for fat reduction and body slimming, the team at Innovative Lasers of Houston said.