One Pound Bag Spirulina Has A Deep Green Color And Is Typically Used In Herbal Supplements Certified Organic, Kosher Our Spirulina Is Cultivated In Man Made Ponds. Non-Irradiated Frontier Is A Member Owned Co-Op, Responsible To People And Planet Spirulina Is The Common Name For Two Species Of Cyanobacteria, Or Blue-Green Algae. A Staple Food Of The Aztecs Until The 16Th Century, It Is Now Cultivated Throughout The World