As a matter of fact, there are various reason which can give rise to purple circles under eyes. But the main factors are two. One of them is unhealthy habits, just like lacking of rest, unhealthy diets as well as few exercise and so on. The other one is bad blood circulation. Skin around eyes is thinner so that the shadow is easy to be seen finally lead to purple circles. For this situation, i have some suggestions for you. Put on your eyes with something useful, such as a boiled egg, a slice of vegetables, or a piece of cloth in yogurt. Besides, living healthier will also help. Less smoking, less drinking, more exercise, removing make-ups throughout before sleeping as well. After all of these, you can get rid of it soon.