What Causes Dark Eye Circles
1) Skin pigmentation
Dark eye circles begin in the capillaries. These capillaries function to allow exchange of nutrients and oxygen to supply vital muscle and tissue. Sometimes, the red blood cells leak out of these capillaries and what happens in the eyes is that this stains the skin. When hemoglobin is broken down, its remaining components have a dark blue-black color. Just like a bruise. So your dark under-eye circles are actually caused by leaky capillaries.
2) Thin skin
Dark eye circles or under-eye discoloration occurs easily if you have thin under eye skin. Thin skin exposes
1. Bone structure beneath easily
2. Tiny blood vessels that just lie below the thin skin surface giving dark the circles the prominence we hate to have.
3) Loss of volume
Dark eye circles can be attributed to sunken eyes, and sunken eyes are caused by the loss of fats in the area under the eye and with all things that suffered from loss of volume, it gets deflated. As the skin gets deflated inwards, the tiny blood vessels underneath the skin are much closer to the skin thus giving rise to dark eye circles. This happens easily when you have think skin and suffers from sunken eyes.
The second type of dark eye circles is caused by eyebags. Fat underneath the eye migrates forward towards the skin.
2. With these bulging eyebags, a shadow is cast on the underside of the eyebag, giving rise to dark eye circles.