DURALACTIN Equine Joint Plus contains MicroLactin®, a patented dried milk protein concentrate derived from hyperimmunized cows that contains factors that appear to modulate excessive neutrophil response in conditions where neutrophils are known to participate. DURALACTIN Equine Joint Plus also contains Glucosamine HCl and Chondroitin sulfate to promote joint health and function. Active Ingredients per level scoop (1 ounce): MicroLactin (dried milk protein): 7,000 mgGlucosamine HCl (marine source) : 900 mgChondroitin sulfate (marine source): 300 mgVitamin C (ascorbic acid): 50 mgZinc: 15 mgManganese: 8 mg