Why collagen is important?
Collagen, derived from Greek, is composed of three polypeptide chains which are assembled to form a triple- helical structural protein. It is the most abundant structural protein in animals, making 33% protein content in human body and around 75% in human skin tissues. Collagen mainly exists in the extracellular matrix of connective tissue. Especially connective tissues like ligaments tendons, and the cornea all contain abundant collagen. Not only these, extracellular matrix collagen form the basic structure of blood vessels