kos organic luminous blue spirulina powder - natural food coloring, vibrant blue, phycocyanin - plant based, non-gmo, gluten-free, 1.4oz, 27 servings kos kos luminous blue spirulina powder your body is a crowded metropolis, a microbial manhattan. spirulina - a cyanobacteria - roams your intestinal streets like a finger-snapping gang of modernist dancers, populating your intestinal gotham with teeny, pirouetting, highly choreographed floral cells in micro-tights, most of them part-time waiters. nasa has used spirulina as a dietary supplement for astronauts. here the dance metaphor ends. awesome ingredients, powered by nature at kos we believe in the power of balance and simplicity - fuel for your journey.