The Hydrodol Rehydration range is formulated with a blend of 4 electrolytes and glucose which work to relieve symptoms of dehydration, aid recovery from illness and help restore body electrolyte balance. This formulation also supports energy production, energy levels and a healthy stress response in the body. Hydrodol Rehydration X Immunity contains additional ingredients like Vitamin C, Vitamin D and Zinc to help support healthy immune system function. All Hydrodol Rehydration products contain our unique HY.FIVE+ FORMULA takes the internationally recognised oral rehydration formulation and enhances it with Magnesium – an important but often overlooked electrolyte - and 72 trace minerals from Aquamin which work to replace the body’s reserves of lost minerals that can occur during illness. Causes of dehydration can include inadequate water intake, vomiting & diarrhoea, fever, heat, travel, strenuous exercise and heavy sweating. Common signs of mild dehydration can include thirst, dry or sticky mouth, low urine output and dry, cool skin.