Biogen's Cytogen is an informed sport certified. No artificial colourants. N-acetyl-L-Tyrosine. N-Acetyl-L-Glutamine. Caffeine. L-Glutamine & Electrolytes. Multi-stage energy. High-Performance Energy Drink. Biogen Cytogen Race Mix contains a blend of moderate and faster-releasing carbohydrates (Isomaltulose, agglomerated maltodextrin, dextrose monohydrate and corn syrup solids), making it an ideal endurance performance solution to help satisfy both immediate energy requirements as well as sustained energy for longer periods of exercise. In addition to the powerful, multi-stage energy release sources, important electrolytes, phosphates and amino acids are included to replenish what is lost during exercise and assist with recovery.