Excess perspiration can affect performance due to a loss in fluid and electrolytes it is therefore important to hydrate and replace these losses etixx isotonic is the ideal combination of carbohydrate and electrolytes to refuel muscles replace electrolytes and stimulate fluid retention supports fluid retention refuels muscles replaces electrolytes neutral ph instructions for use dissolve 35 g powder in 500 ml water drink at least 500 ml per hour of exercise in warmer conditions an