Diatomaceous Earth is a plant based, all natural powder gathered from fossilized algae from the earth, also referred to as fossil shell flour. Our food grade, organic diatomaceous earth supports the natural elimination of fleas, parasites and worms for our furry friends. The all natural powder should be used for 30 consecutive days in order to eliminate adult pests along with the unpatched eggs as well. Sprinkle on your pet’s coat, paying particular attention to your furry friends ears and belly. Make sure to sprinkle on their bedding as well.