VetriScience Laboratories 6PACK GlycoFlex 3 Canine (720 Soft Chews) 6 PACK Glyco Flex II with Free 60 count Joint Treats. These delicious, chicken flavored, soft chews are recommended to provide comprehensive support for joint function and connective tissue health in dogs with moderate joint dysfunction GLYCO-FLEX III represents Stage II of our comprehensive stage of life program for joint support It's also recommended by veterinarians for adult and maturing dogs, sporting and working breeds as well as a follow-up to orthopedic surgery