ZYM Electrolyte Drink Tablets Berry Catapult Formula - 3 Tubes of 10 Tabs Each ! PROPER HYDRATION includes supplementing water with electrolytes DURING activity, but it is not limited ONLY to periods of actual training and racing. OPTIMAL HYDRATION takes place in the days and weeks before an event or after a hard workout. Use GU Brew Electrolyte Tablets whenever, wherever, and you"ll see a boost in preparation, sustenance, as well as recovery. SIMPLY, electrolytes improve the efficacy of the hydration process. They are invariably better than water alone and bring your system into balance more quickly by helping you retain more of the liquid you ingest. ZYM Catapult formula is blend of electrolytes and B & C Vitamins to make it effective against fatigue, muscle burn and dehydration plus infused with Caffeine & Guarana; a natural stimulants to maintain stamina and combat fatigue ! This provides athletes with fresh legs, natural energy and higher endurance !Natural Flavors and Colors, Calories: 4, Carbs: 0g, Sugars: 0g, Sodium: 250mg, Potassium: 100mg, Magnesium: 17mg, Calcium: 18mg, Vitamin C: 100mg, Vitamin B12: 500mcg, Guarana 200mg, Caffeine 100mg ! Each tablet makes a 16oz drink - Each tube makes 10 drinks !