Vets are now telling us that there is resistance to some of the chemical wormers. Not only are they toxic to the liver, contributing to lower immune systems, killing off beneficial bacteria in the horse's gut, but now they are ceasing to be effective! We need another option! In the wild, your horse would seek out certain herbs to purge himself of parasites. Since we do not have those herbs available in our pastures we need to provide them in supplement form. The non-toxic way to kill parasites! Do as the ancients did and take nature's approach to de-worming. No chemicals or poisons! All natural herbal formula. Can be used to treat summer sores- will kill the eggs. Can also be effective for EPM as the Pau D' Arco in this formula has been known to kill that protozoa. INGREDIENTS: WORMWOOD, CLOVES, OREGANO, OLIVE LEAF, CINNAMON, PARSLEY, PAU D' ARCO, GINGER, GARLIC. This formula contains ingredients that act as a tonic for the liver and the kidneys. Can help Jaundice, aid in digestion, fight infection, and is good for gastric and vascular disorders. An amazing addition to your horse's diet- and your won't have to force it. Horses love the way it tastes! 30 Servings.