Healthy articular (joint) cartilage is crucial to joint utility. Cosequin helps support cartilage production and protect existing cartilage from breakdown. The only joint health supplement brand shown effective, safe, and bioavailable in published, controlled U.S. studies, Cosequin is manufactured following standards similar to those practiced by the pharmaceutical industry. Cosequin has been proven safe in cats. Cosequin, a nutritional supplement, safely and effectively provides joint cartilage support while maintaining your cat’s comfort level. Some veterinarians also recommend Cosequin to help support urinary bladder health.