I believe the main difference in these fat burners and others on the market today is the unique blend of ingredients. They are all from creditable companies. These products will help you destroy fat, while preserving lean body mass (LBM). The combination of ingredients are as close to ephedra as we will ever get. They provide similar results, with out the increased sides. I believe that these products will help you lose the most amount of weight, in the safest way possible, when combined with sound diet, training, and cardiovascular activity.