Diatomaceous earth is a remarkable, all-natural product made from tiny fossilized water plants. It is believed that 30 million years ago the diatoms, tiny, single-celled algae found in plankton, built up into deep, chalky deposits of diatomite.
How is Diatomaceous earth made?
The diatoms are mined and ground up, resulting in a powder that resembles and has the same texture as talcum powder.
What does it look like?
It comes out to look like fine, white, crystalline powder made up of the fossilized shells of the microscopic diatoms.
What is it composed of?
3% magnesium, 33% silicon, 19% calcium, 5% sodium, 2 % iron, and many other trace minerals such as titanium, boron, manganese, copper and zirconium.
Food-Grade Diatomaceous Earth can be utilized as a pest control device. It is safe around animals and children. Diatomaceous earth is a deadly product to those insects comprised of exoskeletons. Bedbugs are amongst the list of insects it kills and repels.
Diatomaceous Earth’s potential to kill is due to its sharp microscopic edges, and not because of a chemical action like most toxic poisons.
How does diatomaceous earth kill bed bugs?
The bedbugs hard bodies are sliced open by the material, and literally are dried out, leading to their deaths.
Complete insect control and extermination may take up to several days for the bed bugs to die off. Although chemical poisons act faster and have a shorter residual effect, and Diatomaceous Earth works slower; diatomaceous earth will remain active and nontoxic as long as it remains in the environment.
The process by which Diatomaceous Earth kills bed bugs is natural, containing no synthetic chemicals, odors, or additives of any sort. Once Diatomaceous Earth mineral is applied, it resides until swept up or vacuumed.
Additional effective, and entomologist approved ways of protecting you and your household from these bed bug pests are available on www.bedbug.com
Bedbug.com - The Bed Bug Blog 
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We live in the suburbs and my brother brought home bed bugs after sleeping over at friends house downtown Toronto. We believe it was a small infestation. We very lightly dusted this into bed, bed frames, box spring and along the base boards and perimeter of the room. After 1 week we were bite free. Cleaned up the dust and applied again for safe measure. We have cleaned up the second application and happy to say bed bug and bite free for 5 weeks. We were apprehensive at first that it would work, but luckily proved wrong. Professional treatments and extermination were out of our budget and this worked just as effectively and much more budget friendly. Make sure to wear dust masks when applying and buy mattress covers and pillow covers. And your furniture should be 6 inches away from the wall during the application. Your room will feel messy for a bit, but it ended up working out. I would also recommend purchasing the poly duster as it will make the application much easier, than using a flour sifter. As well, I had ordered 2 4lb bags, but only ended up using 1/2 of one of the bags. This stuff goes a long way and you must apply it in a thin layer barely visible to the eye, otherwise it wont work. Only downside is you must clean the dust thoroughly afterward. I’m talking wiping down the floors and furniture on your hands and knees at least 2 times and vacuuming the box spring and mattress. We also took all of our sheets (bed skirt, duvet cover, comforter, sheets, pillow cases and pillows) to a laundromat and used their super large machines and their very hot water option to was and used the hot dryers to dry our linen. The hot water and dryer will kill and potential bugs or their eggs and by going to a laundromat you won’t break your machine. This is a great product and natural alternative!