You've probably heard about collagen, the skin's structural "scaffold" which is responsible for giving skin it's elasticity, strength, and that even smoothness that we all have as children and young adults (but we start to lose as we age.)
Collagen production tends to slow down as we get older, and this leads to sagging and wrinkles. Collagen is not just for beauty- it supports our tissues and organs, and connects them to our skeleton. So these are a few more reasons why we all should be worried about losing collagen. Collagen is produced by a certain type of skin cell, a fibroblast. Fibroblasts are doubly important to healthy skin, as they also produce elastin, which allows our skin to flex and return to normal shape.