Collagen is a complex structural protein which provides the major building material for growth, repair and maintenance of skin, ligaments, bones, nails and hair.
Edited by Hope11111, 17 March 2011 - 09:26 PM.
Posted 17 March 2011 - 09:24 PM
Edited by Hope11111, 17 March 2011 - 09:26 PM.
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