Spirulina is a natural, nutrient-dense blue-green algae that grows in both fresh and salt water. It is globally celebrated as a "superfood" because it is packed with an exceptionally high concentration of plant proteins, vitamins, and powerful antioxidants, It is a microscopic, spiral-shaped organism that thrives in warm, highly alkaline water. Unlike many plants, spirulina does not have tough, woody cell walls. Instead, its outer layer is soft, making it incredibly easy for your stomach to digest and absorb its nutrients instantly.