Essential Spirulina is an organic nutrient-rich freshwater plant. This microscopic blue-green freshwater cyanobacteria has the ability to capture the sun’s energy helping it become one of the most nutritionally dense foods in the world, filled with protein and vitamins. This broad-spectrum Spirulina is of the highest organic grade, sustainably cultivated and carefully selected to bring you the full potential of nature’s goodness. What does Essential Spirulina do? Spirulina has a unique nutritional profile that nourishes, supports and gently strengthens the body.