Chlorella and Spirulina are natural algae that harness energy from sunlight to fuel their growth. We have combined them to bring their individual nutrients together, in one convenient supplement. Our Chlorella and Spirulina are cultivated in pools of freshwater, dried, milled and then pressed into tablets. We use a special process to break down the insoluble cell walls of Chlorella and increase the bioavailability of nutrients. These tablets do not contain bulking agents such as magnesium stearate or any other ingredients. They are 100% pure Chlorella and Spirulina powder.