MEDICINAL INGREDIENTS CONTAINED IN 40 DROPS (2.60 ML): Magnesium - 260 mg (Concentrated desalinated inland sea water from the Great Salt Lake, Utah). Plus the following trace elements, listed in descending order, as found in seawater: Chloride, Potassium, Sulfate, Sodium, Boron, Bromide, Calcium, Carbonate, Silicon, Nitrogen, Selenium, Phosphorus, Iodine, Chromium, Iron, Manganese, Titanium, Rubidium, Cobalt, Copper, Antimony, Molybdenum, Strontium, Zinc, Nickel, Tungsten, Germanium, Scandium, Tin, Anthanum, Yttrium, Silver, Gallium, Zirconium, Vanadium, Beryllium, Tellurium, Bismuth, Hafnium, Terbium, Europium, Gadolinium, Samarium, Cerium, Cesium, Gold, Dysprosium, Holmium, Lutetium, Erbium, Ytterbium, Neodymium, Praseodymium, Niobium, Tantalium, Thorium, Thallium, Rhenium.