VIPER Extreme bars are considered the most powerful stimulant and buzz bar available on the market. Its exclusive and unique formulation should provide you with a powerful mental and physical buzz in about 1530 minutes of eating it. Viper Extreme bar is made from a delicious fruit cereal and nut blend for long lasting energy. To make sure the formula really gives you a kick you get an amazing: 50mg of Guarana 148mg Caffeine and 1000mg of Ltyrosine a very potent excitatory brain amino acid....