This salt contains iodine, a necessary nutrient. Cerulean Seas brings to you one of earth's purest and essential minerals - salt. Cerulean Seas Sea Salt is harvested through the natural evaporation of seawater from the warm and sunny oceans of California; then refined by washing the salt with clean saturated brine to remove surface impurities. Salt, a universal necessity, plays an important role in the digestion and absorption of other nutrients. Cerulean Seas - a gift of the sea. Comments? Please call: 1-800-257-6174 Ext. 225.