Lumino - Diatomaceous Earth For Pets - 5 oz. Lumino Diatomaceous Earth For Pets is a naturally occurring fine powder composed of crushed fossils. This remarkable substance is desiccant - used externally it destroys the waxy outer shell of fleas and ticks causing dehydration. Food grade diatomaceous earth contains 15 trace minerals including calcium, potassium, copper, zinc, iron, phosphorus and selenium. Safe and effective when used as an organic wormer and to treat internal parasites. EPA approved as a food additive. Organic alternative to toxic chemicals Keep dogs, cats, and birds happy and healthy with a non-toxic wormer. Protect pets from fleas, ticks, worms, and parasites the natural way. Food grade diatomaceous earth is a safe, environmentally friendly alternative to toxic commercial flea and tick treatments. Diatomaceous earth is a fine powder composed of the crushed fossilized exoskeletons of microscopic diatoms. This is a remarkable substance that is a desiccant--it actually dries out the waxy outer layer of fleas and ticks, causing them death by dehydration. In tests performed by the USDA, as well as a number of consumer trials, diatomaceous earth has proven to be an effective non-chemical insect control. Food grade diatomaceous earth is also a wormer; mix it with the animals food and it will kill any worms or parasites.