The Trust Think All Species Fly and Tick Organic Livestock Supplement is an all-natural feed additive for equine daily meal applications. Trust Think Product is recognized on four continents as the number one additive to protect equine from blood-seeking insects, including flies, ticks and invasive pests as outlined in the National Animal Health Monitoring System. GRAS-rated and FDA-approved, this organic livestock supplement has been tested by two animal science universities, both of which determined dramatic protection of equine by a decrease of 80% in head shaking and ear flicking, a decrease of 66% in tail swishing, a decrease of 59% in leg kicking and a decrease of 43% in tick attachment. This livestock supplement is also proven to not only repel pests but also stabilize equine behavior, increase animal mood, as well as animal well-being. Made in USA.