Cosequin® is the #1 retail joint health supplement brand recommended by veterinarians and combines glucosamine hydrochloride and chondroitin sulfate to help support cat joint health. Cosequin® Senior for Cats also contains the ingredients beta-glucans, and omega-3's to provide your senior cat overall wellness support. Cosequin® Joint Health Supplements are brought to you by Nutramax Laboratories Veterinary Sciences, Inc., the #1 veterinarian recommended supplement company. ▼Source: Among veterinary brands. Survey conducted among small animal veterinarians who recommended oral joint health supplements. *Source: Survey conducted among small animal veterinarians who recommended animal supplements.