Spirulina is rich in phytonutrients carotenoids xanthophylls and chlorophyll and is perfect for those with a wanting a strong healthy immune system lifestream certified organic spirulina is unique in that it delivers a much higher antioxidant level than any other spirulina it is a powerful immune system support food due to its high levels of phytonutrients including carotenoids xanthophylls and chlorophyll