Spirulina is a blue-green microalgae that is a complete food with dense nutrition. Spirulina is one of the oldest life forms on Earth. It contains between 55 and 70% protein and is rich in antioxidants, vitamins, beta carotene, 8 essential and 10 nonessential amino acids, essential fatty acids, minerals, chlorophyll and phycocyanin (a pigment-protein complex that is found only in blue-green algae). Spirulina is partly responsible for producing the oxygen in the planet's atmosphere that billions of years ago allowed the planet's originating life forms to develop. Our spirulina is spray dried at low temperatures. This size is packed in a glass jar.