1. the act of specifying. 2. Usu., specifications. a detailed description of requirements, dimensions, materials, etc., as of a proposed building. 3. something specified, as in a bill of particulars. 4. an act of making specific.
Collagen is a type of protein fiber found abundantly throughout our body. It provides strength and cushioning to many different areas of the body, including the skin. More specifically, collagen is found in our various types of connective tissue such as cartilage, tendons, bones, and ligaments.
Collagen is created by fibroblasts, which are specialized skin cells located in the dermis. Fibroblasts also produce other skin structural proteins such as elastin (a protein which gives the skin its ability to snap back) and glucosaminoglycans (GAGs). GAGs make up the ground substance that keeps the dermis hydrated.