, the active ingredients—green tea leaf extract (provides 100 mg caffeine and 350 mg polyphenols), eleuthero root 12:1 extract (equivalent to 2000 mg eleuthero root), korean ginseng root 5:1 extract (panax ginseng), and octacosanol—have been the same since at least late 2006. the new formula has the same other ingredients, except silica is now listed after magnesium stearate.