You have to be careful with fake ephedra in the market now. It is called Ephedra Extract or Ephedra Nevadensis and does not contain the active ingredient ephedrine alkaloids.
Beware of fake ephedra elsewhere called Ephedra Extract. It has the active ingredient ephedrine alkaloids removed or it is not present. Only real Ephedra, Ma Huang or Sida Cordifolia has Ephedrine Alkaloids. It is the alkaloids that make it work. Don't be fooled by just ephedra alone.
You can get a stronger Mini Lean 25/100, Minithins at the ephedrawholesale dot com site or thatswholesale dot com. Not sure if I can post links.