Duralactin® Equne Joint Plus Pellets for the managing healthy cartilage and joint function while managing inflammation in horses. Duralactin® Equine Joint Plus Pellets have several ingredients like MicroLactin®, Zinc and Manganese that support healthy cartilage and joint function while tackling inflammation. Your horse can easily take their daily dose either directly or with their food. MicroLactin,® the main ingredient in Duralactin,® is a dried milk protein concentrate from hyperimmunized cows that helps block the inflammatory process and relieve inflammation.