(Vetri-Science) Glyco-Flex Classic 300 Tablets for Small Dogs contain GlycOmega for joint support. Developed for small dogs up to 30 lbs. Each tablet contains 300 mg perna canaliculus (green lipped mussel). GlycOmega Perna is rich in amino acids (building blocks that make up connective tissue), polypeptides, chelated minerals, fatty acids, glycosaminoglycans, vitamins, and the nucleic acids RNA and DNA. Chewable tablets.