Bags under the eyes are different from person to person. For some these bags are more vivid in colour, others have dark circles with more depth to them. Some of the causes of dark circles are:
- Eye Strain
- Sun overexposure
The skin under the eyes is very thin, it doesn't have the usual layer of fatty tissue. Instead, there are lots of little blood vessels and lymph glands. If the body lacks oxygen or fluid, the blood can flow slower and is darker in colour. Blood vessels are visible through the fine, almost transparent skin around the eyes. Depending on your skin type, the shadows, bags or dark circles under your eyes will either be brownish or blueish. In some families, dark circles are genetically determined, meaning that particularly fine skin around the eyes has been passed on in your genes.