IMPERIAL ELIXIR - Siberian Eleuthero Sport 5000 mg - 90 CapsulesDESCRIPTION Siberian Eleuthero is a superior tonic herb, shown to be effective for athletes and active people for supporting their levels of energy, stamina and endurance. Because Siberian Eleuthero roots are too hard to assimilate, we process our roots into a liquid extract which is dried into a concentrated powdered extract. It takes 10 pounds of pure roots to make one pound of our 10: 1 concentrated extract powder which is much more easily absorbed