Carti-Form HS is a high strength glucosamine nutraceutical supplement for horses. Carti-Form HS is high in glucosamine for joint health. Carti-Form HS is by Vet-A-Mix. Vet-A-Mix offers a complete line of quality nutritional supplements and research-proven drug dosage forms designed specifically for horses.Carti-Form HS Advantages: Concentrated for economical, long-term administration. Each bottle supplies a maintenance dosage level of glucosamine for an average horse for 80 days. Stimulates production of synovial fluid. Protects against articular cartilage deterioration.