Both Ephedrine and Ephedra increases thermogenesis - you bodyheat increases and bodyfat is burned directly. Furthermore both Ephedrine and Ephedra are awesome appetite supressants - decreasing hunger and appetite are a keyfactor for quick weightloss. Last but not least both Ephedrine and Ephedra increase physical performance - it will increase your workout intensity and the length of your workouts thus leading to more calories burned. And now please show us any of the so called fatburner supplements outthere without Ephedrine or Ephedra that can do the same! Don´t even try, you won´t find one!