Pharmaceutical-grade glucosamine and chondroitin supplement for dogs. Active ingredients per 4 capsules: • Chondroitin Sulfate, 865 mg • Glucosamine HCl, 865 mg • Glucosamine Sulfate, 865 mg • Glucosamine Potassium, 865 mg • N-acetyl D-glucosamine, 240 mg • Ascorbate, 240 mg • Manganese Proteinate, 60 mg