Electrolyte and Vitamin D3 supplement for reptiles and amphibians. Electrolytes are minerals (magnesium, potassium, sodium, and calcium) that are lost through forms of dehydration, particularly in stress situations. Electrolyte maintains a balanced electrolyte flow within body fluids and supplies Vitamin D3 for proper calcium absorption. Vitamin D3 is vital for captive reptiles not exposed to UV-light to prevent or reverse metabolic bone disease. Just shake and add 2 drops per 30 ml (fl. oz.) of drinking water. Ingredients: Water, Dextrose, Potassium Chloride, Magnesium Chloride, Calcium Chloride, Glycerol, Sodium Acetate, Sodium Propionate, Potassium Sorbate, Vitamin D3 Supplement.