
What Causes Dark Circles Under the Eyes?
Dark circles are not a single condition but a visible sign of several underlying causes. The skin beneath the eyes is exceptionally thin, allowing blood vessels and muscles close to the surface to show through more easily and creating a bluish or purple tone. This transparency becomes more noticeable with age as collagen levels decline and the skin continues to thin.
Ageing also affects the deeper facial structures. Loss of collagen and volume can lead to hollowing beneath the eyes, creating shadows that are often mistaken for pigmentation. Reduced skin elasticity further contributes to crepiness and fine lines, which can make the under-eye area appear darker and more tired. In addition, deeper lines and grooves, particularly at the tear trough level, can create shadows that worsen darkness.
Genetics play a significant role, with some individuals inheriting deeper-set eyes, prominent tear troughs or a tendency towards increased pigmentation in the under-eye area. Ethnic background can also influence skin thickness and baseline pigmentation, making dark circles more visible in certain individuals regardless of lifestyle.
Lifestyle factors such as fatigue, dehydration and allergies may worsen the appearance of dark circles by increasing fluid retention or inflammation. However, these factors usually amplify an existing issue rather than cause it.








