Maxifuel Viper boost bar is a unique & highly advanced sports snack that contains a blend of nutrients to help you rapidly enhance mental focus while energising your body to lift you into the peak performance zone. Formulated using the latest sports science research, eating a Viper boost bar will help you to perform with incredible drive & energy, whether you eat one immediately before exercise or during training & events. Rip open, eat & get the power to zone-in on a new PB. Boost Focus Get in the zone with a stimulating blend of caffeine, guarana & tyrosine. Scientifically formulated to lift your body & mind fast. Wake-up, zone-in & explode into action. Boost Energy With energising fruit & grains for rapid & sustained energy release. Get going fast & sustain your intensity when others are beaten. Get the winning edge. Boost Energy With maximum strength & focus nutrients, designed to work in as little as 20 minutes. Get the lift you need exactly when you need it most.