Need a premium hydration tablet for endurance and sports exercise? GO Hydro, from SiS, is a naturally flavoured and sugar free, electrolyte effervescent tablet, providing key electrolytes lost in sweat; sodium, calcium, potassium and magnesium. The magnesium specifically helps to maintain electrolyte balance and support your muscles. Available in three great-tasting flavours, the cola flavour also includes 75mg of caffeine per tablet to help focus and alertness. Need a premium hydration tablet for endurance and sports exercise? GO Hydro, from SiS, is a naturally flavoured and sugar free, electrolyte effervescent tablet, providing key electrolytes lost in sweat; sodium, calcium, potassium and magnesium. The magnesium specifically helps to maintain electrolyte balance and support your muscles. Available in three great-tasting flavours, the cola flavour also includes 75mg of caffeine per tablet to help focus and alertness. Electrolyte effervescent tablets. Contains sodium, calcium, chloride, potassium and magnesium. Magnesium helps to maintain electrolyte balance. 75mg of caffeine per serve (cola flavour). Caffeine improves performance and alertness. 20 tablets per tube Handy effervescent tablets that contain a blend of electrolytes. SiS GO Energy dissolves quickly and easily in water. Experience the benefits!