NATURES ANSWER: Plant Based Magnesium, 90 vc

Harvested in the cool, clean and pristine waters off the coast of Iceland, Aquamin's Red Algae and Seawater Marine Calcium, Magnesium, and Multi-Mineral Complex supplies bio-active magnesium, calcium, and 72 other trace minerals. In an area untouched by industry, the warm waters of the gulfstream meet the cold clean waters of the artic and the perfect conditions exist for Red Algae to build up.