Diatomaceous Earth 1lb RCP Approved
Our Fossil Shell Flour is Pure Freshwater Diatomaceous Earth. It is of the highest quality available, being greater than 99.5% amorphous silica and less than 1/2% crystalline silica.Fossil Shell Flour Diatomaceous Earth is used for internal and external use. This fossil shell flour is ideal for human consumption, pets, or for long term food storage. The product is GRAS (generally regarded as safe) for human consumption and in addition is Certified Organic by OMRI.