SIS GO Hydro Electrolye Tabs Cola + CAFGo Hydro is designed to ensure you are effectively hydrated to produce your best performance. As an effervescent tablet that readily dissolves in plain water, it represents a highly practical approach (simply drop one tablet in your 500 ml water bottle) without the calories. Hydro meets your sodium requirements at a specific concentration (30mmol L) that is scientifically proven to produce superior hydration compared with water alone. It was developed