At the heart of Vivamune is an active substance called OxC-beta Complex that Avivagen's founding scientists discovered. It forms naturally when ¦Â-carotene is exposed to oxygen, benefiting animal health through a novel combination of effects upon the animal's own immune system. Vivamune provides a unique combination of health benefits to dogs, including support for skin, joint & gut health. Vivamune soothes skin related issues caused by seasonal allergies and maintains overall skin quality; it eases stiffness and promotes healthy hip and joint function. This once-a-day chew simplifies the daily supplement routine by providing pets comprehensive support against the most common health problems, skin and joint issues, while also providing proactive, protective immune function abilities.