Stock up and save! $120 in savings when you buy 6 bags! That’s like getting one bag for free. Phytoplankton is the foundation and first form of food, life and nutrition in the ocean. Karen is 100% pure, natural phytoplankton. It is an excellent source of Zeaxanthin, an antioxidant and contains Beta-Carotene Tap into this ancient nutrition, the power of the ocean. Unit Price: $99.99.