100% Pure Food Grade Diatomaceous Earth 1 lb (454 grams) Pwdr
With 100% Pure Food Grade Diatomaceous Earth, you can protect your home and garden without resorting to harsh chemicals. What sets diatomaceous earth apart is that it works by physical rather than chemical action. One of nature's richest sources of silica, diatomaceous earth consists of the fossilized remains of hard shelled algae known as diatoms. These fossilized shells are both highly absorptive and mildly abrasive.