About one third of all of the protein in your body is collagen. Collagen is a major structural protein, forming molecular cables that strengthen the tendons and vast, resilient sheets that support the skin and internal organs. Bones and teeth are made by adding mineral crystals to collagen.
User-generated content. User-generated content (UGC), alternatively known as user-created content (UCC), is any form of content created by users of a system or service and made available publicly on that system.
The BBC adopted a user-generated content platform for its websites in 2005, and TIME Magazine named You as the Person of the Year in 2006, referring to the rise in the production of UGC on Web 2.0 platforms.