This is the current revision of Collagen as edited by Philip J. Rayment(Talk | contribs) at 21:12, May 28, 2008. This URL is a permanent link to this version of this page.
Collagen is any of a class of extracellular proteins abundant in higher animals, forming strong insoluble fibers and serving as connective tissue between cells, yielding gelatin when denatured by boiling. It is widely used in cosmetic surgery.