VetriScience Laboratories GlycoFlex Classic Hip and Joint Supplement for Dogs, 600 Mg, 300 Chewable Tablets The Glyco Flex Joint Support Stages system has been trusted and recommended by veterinarians for over 30 years. Easy to administer chewable tablets Perna caniliculus is internationally recognized for its anti-inflammatory properties, fatty acids and as a natural source of glucosamine and chondroitin. A great way to begin a joint health program for dogs of any age. Packaging may vary