what is collagen vitamins
Collagen /ËkÉlÉdÊÉ¨n/ is the main structural protein in the extracellular space in the various connective tissues in animals.As the main component of connective tissue, it is the most abundant protein in mammals, making up from 25% to 35% of the whole-body protein content.ollagen /ËkÉlÉdÊÉ¨n/ is the main structural protein in the extracellular space in the various connective tissues in animals.