Beware of fake ephedra sold elsewhere called Ephedra Extract. It has the active ingredient ephedrine alkaloids removed or it is not present at all. Only real Ephedra, Ma Huang or Sida Cordifolia has Ephedrine Alkaloids. It is the active ingredient called Ephedrine Alkaloids that make it work and it is present only in real Ephedra, Ma Huang and Sida Cordifolia. Don't be fooled by seeing just ephedra on the label. Get the real ones at the site below or click on my name below.