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Hydration First, with Added Caffeine: Effervescent tablets deliver sodium, potassium, calcium and magnesium with added caffeine in a practical daily hydration format Electrolytes for Active Routines: Designed to support hydration and maintain body fluid balance when exercising, helping replace key electrolytes lost through sweat Stay Alert When Needed: Caffeine contributes to mental performance by helping maintain alertness and aiding concentration during demanding sessions or active days Simple On-the-Go Format: Single-serve tablets dissolve easily in water, creating a convenient low-calorie drink for training, travel or everyday hydration You can’t Beat the Science: Every SiS product is driven by research, developed with elite athletes, and tested with precision to deliver reliable, evidence-based performance nutrition for athletes at every level