Zantrex-3 contains - Yerba mate, Panax Ginseng, Caffeine, Green Tea, Kola Nut Extract and a few misc things.
*Yerba mate - this strong central nervous system stimulant, is often sold as a dietary supplement.
*Panax Ginseng - This species is native to China and has been an important herbal remedy in traditional Chinese medicine for thousands of years. The majority of published research has focused on ginsenosides, Ginseng’s active agent. This key ingredient positively alters blood flow to the brain and penis. Ginseng has no known side effects.
*Caffeine - is a basic stimulant. An excessive amount of caffeine is known to cause restlessness and/or insomnia. People taking aspirin or blood thinning medications should consult their doctor before increasing additional caffeine intake, because caffeine may interfere with blood clotting. More studies are still needed to determine if caffeine is truly beneficial for weight loss.
*Kola Nut Extract (Caffeine) - is popular in the tropics as a caffeine-containing stimulant. Kola-nut extract has been known not only to cause jitteriness, but overt nervousness and with extend usage toxicity.
It's all stimulants - especially caffeine - and ginseng. Look at how great you've done with your weight loss - why would you even think about one of the many gimmicks out there that play into people's insecurities and desire to lose weight ??