GlycoFlex Plus provides dogs with ultimate strength joint support and is clinically proven to increase hind leg strength by up to 41% in just four 4 weeks.* It combines 11 active ingredients, including Perna canaliculus, chondroitin sulfate, glucosamine, MSM and antioxidants to support your dog's joints and connective tissue. GlycoFlex Plus is recommended by veterinarians for active, competitive and senior dogs suffering from occasional discomfort and mobility issues as a result of joint degradation or inflammation. Dogs love these delicious bite-sized chews available in duck, bacon and peanut butter flavors.