Melanin refers to dark brown or black pigments in the skin ... The bottom line Dark circles under the eyes can have many different causes, and in some cases can be a sign of a health problem ...

It's a phenomenon called "eye black." Natural skin absorbs some light, but reflects the rest. This reflection can cause glare and impair vision. Black stripes are supposed to prevent this by ...

To help you determine the best way to treat your dark under-eye circles, I spoke to dermatologists about common potential causes, effective ingredients, and cosmetic treatments worth investing in.