Maxifuel Viper boost caps are a unique research formulated blend of smart-nutrients designed to boost focus, mental drive & alertness before or during important training sessions, events & matches. Blended using the latest sport science, Viper Boost caps are ideal is you're an athlete wanting a safe but powerful way to take your exercise performance to PB beating levels of intensity. Simply pop the caps when you need a lift & enjoy PB smashing drive. Boost Focus Maximum strength stimulating caffeine, guarana, L-tyrosine, bitter orange, ginkgo, L-carnitine & Vitamin B5. Boost Performance Scientifically formulated to lift your body & mind fast. Wake-up, zone-in & explode into action.