Dasuquin® is the #1 joint health supplement brand recommended by veterinarians and combines the demonstrated benefits of ASU, glucosamine hydrochloride, and chondroitin sulfate to help support joint health. Dasuquin® Senior also contains beta-glucans, omega-3's, and antioxidants to provide your senior dog overall wellness support. Dasuquin® 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.