The magnesium chloride we use is a solution mined in Veendam in the Netherlands. It is mined from an ancient seabed known as the Zechstein Sea. This magnesium has been condensed and purified for over 250 million years.
To mine the magnesium chloride, spring water is carefully pumped down to dissolve the seam and the solution is brought up to the surface. This solution is the foundation of the Zechstein Magnesium in our products.