Organika Organic Spirulina PowderOrganika Spirulina powder Spirulina is a type of blue green algae that grows in alkaline water and is commonly cultivated and harvested from open air freshwater pools. It is an edible one celled form of algae that contains iron and it has been growing on earth for over 3. 5 billion years. It has been enjoyed as a dietary supplement around the globe for centuries and has been traditionally incorporated into Mexican menus during the Aztec civilization.