The original and still the most popular, Ancient Minerals Magnesium Oil, contains only raw, highly concentrated, ultra pure magnesium chloride and other trace minerals drawn from the Ancient Zechstein Seabed in Northern Europe. There are no added ingredients except those found naturally occurring in the deep underground deposits from this pristine source. Ancient Minerals Magnesium Oil is considered the gold standard by practitioners for rapidly restoring cellular magnesium levels and is easily absorbed into the skin and underlying tissues. One teaspoon contains approximately 560mg of elemental magnesium.