kos natural pre workout powder - blue raspberry flavored blue spirulina blend - 70 mg organic caffeine, ginseng, cordyceps - 30 servings kos kos energizing blue spirulina blend hey, sometimes having the blues is a good thing. take blue spirulina, for instance. it has all the subaqueous, billion-years-in-the-making mojo of its green counterpart and none of the mild "king neptune's man-cave" essence of algae. electric blue - it's totally you. awesome ingredients, powered by nature at kos we believe in the power of balance and simplicity - fuel for your journey.