Spirulina (Arthrospira platensis) is a simple, one celled form of algae that thrives in warm, alkaline fresh-water. The name lsquo;Spirulina is derived from the latin word for lsquo;helix or lsquo;spiral, denoting the physical configuration of the organism when it forms swirling, microscopic strands. Spirulina is 69 percent complete protein, with all the essential amino acids in perfect balance. In comparison beef is only 22 percent protein. In addition, Spirulina is one of the few plant sources of vitamin B12, usually found only in animal tissues.Spirulina also provides high concentrations of many other nutrients ndash; amino acids, chelated minerals,pigments, rhamnose sugars (complex natural plant sugars), trace elements, enzymes (SOD), and essential fatty acids (both linoleic and linolenic acid) ndash; that are all in an easily assimilable form. Spirulina is one of the blue-green algae due to the presence of both chlorophyll (green) and phycocyanin (blue) pigments in its cellular structure. Spirulina lacks cellulose cell walls, unlike other blue/green algae, therefore it can be easily digested. Viridians Spirulina is certified organic by the following organisations: Soil Association, ECOcert, Naturland, USDA NOP and IFOAM. Also available in a loose powder. Directions: As a food supplement, take one to three tablets up to three times daily with water, or as directed by your healthcare professional.