The Blue Treasure sea salt for synthetic sea salts contains all trace elements founded in natural coral reefs seawater, such as calcium(Ca), magnesium(Mg), iodine(I), strontium(Sr), molybdenum(Mo), iron(Fe), nickel(Ni) and water-soluble B1, B12,etc.Blue Treasure sea salt has a strict quality control process during manufacturing, fine grain structures, and drying state. It dissolves rapidly, and the resulting synthetic saltwater very clearly.