Pellet supplement helps support normal joint function with a combination of popular joint health ingredients to keep your horse in top condition. Helps maintain cartilage, connective tissue and joint mobility, while antioxidants help remove damaging free radicals. Each 1 oz dose contains 5,000 mg glucosamine HCl (shellfish source), 1,750 mg MSM, 1,000 mg calcium ascorbate (Ester C), 37 mg bromelain, 14.5 mg chondroitin sulfate and 3.5 mg perna mussel.