Fully digestible one ingredient chews that are made out of the dermis layer of the cow skin.Collagen sticks are rawhide free!No hormones, fillers, artificial preservatives, chemicals or by-products used in production of Collagen SticksPromotes dental healthHelps to maintain muscle massFull of nutrients like amino acids, peptides, glucosamine, and chondroitin that supporting healthy joints, skin, and coatSold fresh and can be stored for up to 2 years -  bag of 10 for $7.00