Tear Trough
One of the most obvious signs of ageing is changes to the thin skin in the area just underneath the eyes. Some people inherit genetic tendencies to dark circles or deformities in this area, (known as the ‘tear trough’); others develop them as a consequence of natural ageing. Dark circles, the shadowy grooves under the eye, are usually the result of reduced blood circulation. Blood with a low oxygenation level looks bluer/purple, and as the skin under the eye is so thin you can actually see the darkness through the skin layer.