As we age, our skin naturally starts to lose collagen and elastin, the stuff that essentially keeps it looking plump and taut. The result can be sagging skin that makes your face look as if you are ageing prematurely. The good news is there are some simple steps you can take to keep your skin tight and firm, and to tighten loose skin. We’ve come up with a 6 step guide to tightening and firming ageing skin.