Diatomaceous Earth (DE) is truly an amazing and multi-purpose natural product! This naturally-occurring soft sedimentary rock is created from the fossilized remains of algae called diatoms. DE is 100% food grade organic freshwater Diatoms, ground freshwater Green Plant. Faith's Farm is an authorized distributor of Perma-Guard and repackages with their permission. Perma-Guard owns the cleanest DE mine in the USA. Use for health benefits and pest control.