Viper Boost tablets are a research formulated blend of nutrients designed to boost focus, mental drive & alertness before or during an endurance training session/event. Blended using stimulating caffeine, guarana & L-tyrosine as well as other key ingredients bitter orange peel & L-carnitine for this unique formulation. By including Viper Boost caffeine tablets before a training session or event, it provides you with the optimum amount of caffeine to increase mental alertness & focus without the additional carbohydrate or calories. It also provides vitamin B5 which is a key nutrient involved within energy production & metabolism.