Harvested from Southern Australia, Aussie Trace Minerals is an ionic trace mineral concentrate made from 100% solar-concentrated ocean water. Contains magnesium plus over 70 minerals and electrolytes. Simply mix into water, a protein shake, greens drink or other beverage. Heavy Metals During the solar concentration process, the heavy metals of concern (mercury, cadmium, lead and arsenic) fall out of this solution naturally. Visit their website for these 3rd party test results and full disclosure lab reports. Fluoride Aussie Trace Minerals contains naturally occurring fluoride, which is always found in seawater and in soils. Nutrition Facts (per 20 drops)Calories - 0Fat - 0gSodium - 40mgCarbohydrates - 0gCalcium - 0.1mgMagnesium - 102mgChloride - 355mgPotassium - 45mgNot a significant source of saturated fat, trans fat, cholesterol, fibres, sugars, vitamin A, vitamin C, or Iron. Directions Adults: Add 5 to 20 drops to 450 ml of water, protein shake, greens drink, or other hot or cold beverage, once or twice daily. Always read the label and use only as directed. This product is a food, not a medicine.