Diatomaceous Earth is milled from fossilized hard-shelled aquatic organisms called diatoms. It looks like ground chalk in appearance but when placed under the microscope, you will see tiny pieces of crushed phytoplanktons.
Food grade Diatomaceous Earth is safe and natural way to eliminate parasites and intestinal worms such as nematodes, roundworms, pinworms and hookworms. Recommended for all ages and and all breeds of dogs and cats.