Extracted from Tripscompagnie, the source of the purest/most concentrated Magnesium Chloride
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Extracted at Tripscompagnie (a small town near Veendam). The mining of a unique salt layer from the Zechstein Sea (which evaporated 250,000,000 years ago) has been ongoing since 1982.  This source of Magnesium Chloride is recognized as the purest/most concentrated, and is superior to Magnesium Chloride from other sources such as the Dead Sea.