3PACK GlycoFlex 2 Canine (360 Tablets)  Hip and Joint Supplement for Dogs, 120 Chewable Tablets Contains Perna canaliculus, Glucosamine HCl, Dimethylglycine, Methylsulfonylmethane, and manganese GlycoFlex joint health supplements have been trusted and recommended by veterinarians for over 30 years. VetriScience products are veterinarian formulated and approved by our veterinary review board. Our supplements are made in the USA. Provides added comfort during recovery. Support for joints and connective tissue health. Veterinarian approved. GlycoFlex 2 also includes glucosamine a necessary nutrient for building healthy cartilage and MSM, an organic sulfer compound that is necessary to form connective tissue in joints. MSM may also act as an analgesic, supporting comfort by lessening nerve impulses in the body. GlycoFlex 2 is a great option for preventative measures for competitive and working dogs as well as those that may be pre-disposed to degenerative joint health issues. GlycoFlex 2 is recommended for dogs showing discomfort due to aging, joint disease, hip dysplasia or recovering from orthopedic surgery. Formulated to support a lifetime of healthy joints GlycoFlex 2 chewable tablets come in a palatable imitation roast chicken flavor that your dog will love.