Collagen is a protein which consist of short peptide chains, which are made up of amino acids. It is naturally synthetised in the body and is the main structural protein founds in bones and various body tissues. Collagen production naturally declines with age. With added vitamin C, which supports normal collagen formation for the normal function of skin, teeth, gums, bones, cartilage, blood vessels and contributes to the protection of cells from oxidative stress. Biotin aids normal hair and skin and selenium helps maintain normal hair and nails.