Joint Health Support for Horses: Cosequin is the #1 veterinarian recommended joint health supplement brand*. This supplement is formulated with glucosamine, chondroitin sulfate, methylsulfonylmethane (MSM), and avocado/soybean unsaponifiables (ASU) to support joint healthPowered by ASU: The combination of ASU, glucosamine, and chondroitin found in Cosequin ASU has been shown to be more effective supporting joint health than either glucosamine or chondroitin sulfate alone in cell culture studiesEasy to Serve: CosequinASU Joint & Hoof Pellets combine our scientifically researched, proprietary ingredients into a tasty, tiny pellet preferred by horses and horse ownersFormulated for Your Horse: The addition of biotin, copper, zinc and essential amino acids methionine and lysine provides comprehensive hoof support to promote hoof durability, strength and growthBacked by Science: Nutramax Laboratories Veterinary Sciences supplements are veterinarian formulated with high-quality ingredients to support your horse’s joint health, no matter their discipline or performance level