A nutritional supplement to support immune system health. Oli-Vet is 100% pure Olive Leaf Extract. The Olive Leaf Extract used in Oli-Vet is standardized to yield 15% Oleuropein, the key active ingredient. Tests show that it eliminates microorganisms which may support its use in almost any type of microbial invasion. Olive Leaf Extract also contains a natural complement of bioflavanoids like Quercetin and Rutin that are antioxidants. In addition, Olive Leaf Extract promotes circulatory health and is an antioxidant. Oli-Vet is an extremely effective, all natural and safe supplement.