The Farnam MaxFlex XR Extended Release Horse Joint Supplement is a simple way to support your equine buddy’s joint health around the clock. The extended release system is activated by moisture in the digestive tract, and it slowly releases layers of glucosamine over time, providing a steady supply to the joints. This unique formula combines glucosamine with other trusted ingredients like chondroitin sulfate, hyaluronic acid and MSM. All of that good stuff is packed into an easy-to-feed, tasty alfalfa-based powder.