What holds complex organisms together? One of the principal answers is the rough, fibrous material known as collagen.1 Collagen consists of polypeptide chains of protein (Glycine, Proline, Hydroxyproline and Arginine), folded into a triple-helical conformation. It makes up 30% of the protein in the body, and up to 70% of the protein in the skin. Collagen ensures cohesion, elasticity, and regeneration of all our connective tissue. Collagen is like the ‘glue’ that holds us together.