What are dark circles?
The skin around the eyes is the thinnest on the body – 5 times more than that on the rest of the face –; thus, it is particularly affected by aesthetic problems (link). One of the most common issues, both in young and older people, are dark circles, due to an alteration in the skin colour under the eyes.
This darkening of the area gives the face a tired and “dull” appearance and, mainly, can be caused by.
- Excess pigmentation (melanin), which gives a darker colour.
- Thinning of the skin, so that the vascular network underneath becomes transparent, and a purple shade appears.
Sinking in the area from the eye to the cheek (nasojugal sulcus), as a result of which dark circles are even more evident.