Note: Every batch of chlorella at NaturalNews Store is rigorously tested for radiation by a 3rd party lab and is consistently found to have no detectable levels of radiation. Clean ChlorellaTM is the world's cleanest chlorella. Nearly all chlorella that's commercially grown contains aluminum and arsenic because it's grown outdoors where chemtrails and other pollutants contaminate the air. This air falls onto the chlorella farms, and because chlorella is so good at holding onto metals, the metals accumulate in chlorella: Aluminum, Arsenic, Cadmium, Lead and Mercury. To determine this, we tested 17 different sources of chlorella for all five metals, then tracked them back to their country of origin. We found China to have the highest levels of contamination. And yet, amazingly, chlorella from China is certified organic! Importantly, we found that the cleanest source of chlorella in the world is NOT certified organic (and it's not from China). It's grown indoors, in a tightly-controlled indoor growing environment, so it does not receive any fallout from air pollution, chemtrails, agricultural runoff or other sources.Clean Chlorella is a "thin cell wall" chlorella with high digestibility, which we believe to be superior to "broken cell wall" technology in term of nutrient preservation. Breaking the cell wall generates both heat and very high pressures that also break the molecular integrity of many nutrients in chlorella. Clean ChlorellaTM (Chlorella vulgaris) - Grown indoors in tightly-controlled indoor growing conditions - Best suited for its ability to bind with toxic metals, pesticides, synthetic chemicals. Not certified organic but laboratory tests prove it to be far cleaner than "organic" chlorella. Tested as the cleanest commercially-grown chlorella on the planet. Country of origin: South Korea.