The Nuun Complete pack contains four varieties of Nuun: Nuun Sport, Nuun Vitamins, Nuun Immunity, and Nuun Rest to give you clean and tasty hydration support for all occasions. Nuun Sport: designed to replace what is lost when you sweat, Nuun Sport is made to be enjoyed before, during, or after any Situation where you're going to be active. Simply drop one tablet of Nuun Sport into 16oz of water, let it dissolve, and enjoy! Nuun Vitamins: formulated with 11 of the most under-consumed vitamins in the average diet, Nuun Vitamins tops off your vitamins and hydration and is perfect for an anytime tasty hydration boost. Add one tablet of Nuun Vitamins to 16oz of water, let dissolve, and enjoy! Nuun Immunity: when you're on-the-go and want easy immune system support, Nuun Immunity is a tasty blend of botanicals and electrolytes to support your body. Enjoy hot or cold by adding one tablet to 16oz of water. Let dissolve and enjoy! Nuun Rest: This soothing blend of magnesium, potassium, tart Cherry, and electrolytes promotes a natural relaxation response for tired bodies and minds. Enjoy hot or cold by adding one tablet to 4-6oz of water. Swish while you sip-the magnesium will naturally settle at the bottom of the cup but will rinse clean with warm water.