Powerbar isoactive 600g isotonic sports drink the powerbar isoactive 600g isotonic sports drink is perfect for replacing lost water and electrolytes that you lose during workouts featuring five of the main electrolytes that are lost in sweat along with a dual source carb mic of glucose and fructose so you can push yourself even further servings 18 x 33g drink according to personal thirst suggested usage drink every 15 minutes 150 200ml use as part of a varied and balanced diet a