Bioglan Superfoods Green Boost is packed with nutrient dense greens to provide the concentrated goodness found in green plants and vegetables in a great tasting powder. Green Boost contains a blend of powdered super greens spirulina, chlorella, wheatgrass and barleygrass, plus super green vegetables kale and spinach. Bioglan Superfoods Green Boost is packed with nutrient dense greens to provide the concentrated goodness found in green plants and vegetables in a great tasting powder. Green Boost contains a blend of powdered super greens spirulina, chlorella, wheatgrass and barleygrass, plus super green vegetables kale and spinach.