Equine America Glucosamine HCI 12,000 Give your older horses and ponies the boost they need with the Equine America Glucosamine HCI 12,000. Made with numerous nutrients, Glucosamine HCI 12,000 provides a fantastic supplement for great value to help with the mobility for all horses and ponies. With a blend of potent glucosamine (from hydrochloride or HCI), Glucosamine HCI 12,000 also contains MSM and Hyaluronic Acid made with a palatable taste perfect for helping to provide the building blocks and support for the cartilage repair and maintenance of synovial fluid.