The High 5 ZERO Protect is a sugar-free effervescent tablet, which helps you stay hydrated and supports your immune system. ZERO Protect can be mixed to your preferred strength, but High 5 recommends one tablet in 500ml of water. It makes a light and refreshing electrolyte drink, that helps replace the electrolytes lost through sweat. The addition of vitamin C, vitamin D3 and folic acid may help your immune system. The tube contains 20 tablets. Nutritional Information - per 4g serving Vitamin C: 100mg (125% RI*) Vitamin D: 5μg (100% RI*) Folic Acid: 200μg (100% RI*) Potassium: 70 (3.5% RI*) Sodium: 250mg Magnesium: 56mg (15% RI*) *Reference Intakes Ingredients Acidity Regulators (Citric Acid, Malic Acid), Sodium Bicarbonate, Firming Agent (Sorbitols), Magnesium Carbonate, Sodium Citrate, Potassium Citrate, Natural Flavourings, L-Ascorbic Acid (Vitamin C), Echinacea aerial part extract (Echinacea purpurea), Citrus bioflavonoids (Citrus sinensis), Orange Juice Concentrate, Leucine, Sweetener (Sucralose), Cholecalciferol (Vitamin D) Sodium Chloride, Folic Acid. Prior to consumption, please always check the label for allergens, ingredients, and nutritional information.