Science In Sport Hydro Tabs are 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 to keep the British Sailing team optimally hydrated at the 2008 Beijing Olympics. Simply drop a tablet into water for effective hydration, with virtually no calories, before and during sports.Hydration Tablets: Includes 1 tube with 20 vegan hydration tabletsPlus Electrolytes: Contains just the right amount of scientifically researched clinical doses of all your body's essential electrolytes, to ensure you can go further for longer by dramatically reducing fatigue from electrolyte imbalancesHigh in Sodium: Meets your sodium requirement at a specific concentration (30 mmol/Litre) that is scientifically proven to produce superior hydration compared to water aloneVegan Approved: Vegan and gluten-free hydration tablets with natural flavours, B vitamins and zero sugarPioneer in Sports Nutrition: Since being established in 1992, Science In Sport has been an industry-leading company, working with research institutes, elite athletes, performance directors, and sports scientists