Guarana - from the shrub Paullinia Carpana native to the Amazon region, its extremely high level of caffeine stimulates metabolism which in turn causes the body to expend more energy.
Other ingredients include DHEA, ephedrine, flaxseed oil, fucus vesiculosus, guarana, 5-HTP, L-Carnitine, lecithin, yerba mate, zinc citrate, and zinc pyruvate.
Guarana is an Amazonian seed used by locals to beat fatigue, while Yerba Mate is a natural energy source found in the Mate leaf of South America.
Popular ingredients in diet pills include hoodia, green tea extract, ginseng, guarana, and bitter orange.
The energy source in these teas usually comes from Guarana or Yerba Mate.
Caffeine (formerly known as theme) is the alkaloid of tea, and is identical with that of coffee, guarana, mate and kola nut.
Caffeine is the active principle in tea, coffee, kola, mate and guarana; while theobromine, a body closely allied to it, is found in cocoa and chocolate.