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.