Coll Again Max Collagen Peptide Support Meal Topper* Hips, Joint, Bone & Cartilage Support* Dogs & Cats*COLL AGAIN MAX COLLAGEN PEPTIDE SUPPORT* MEAL TOPPER FOR DOGS and CATS* Did you know that collagen is vital to the health and wellness of your dog and cat, comprising about 30% of your pet's body as well as comprises about 75% of your pet's skin? Collagen is a form of a protein found in your pet's skin, coat, cartilage, tendons, bones (including teeth) and joints, but also, is connective tissue found in your pet's lungs, heart and digestive tract.