The Zantrex Black Rapid Release Weight Loss and Dietary Supplement is made of a rapid release formula. Our softgel capsules are designed for rapid release and high-velocity weightloss. This supplement also works as an appetite suppressant for weightloss and formulated to curb your hunger, control cravings, and reduce caloric intake. Rev your body up with energy and clarity with Zantrex, made with a potent xanthine mixture. Experience Zantrex Black! Made for adults and offers a maximum energy boot.