Eye bags are very common problems on the eyes. And there are many factors can contribute to eye bags such as aging process, sleep insuffience, too much salt consumption, and heredity etc. And injecting restylane is considered as a good way to help people get rid of eye bags. And it works well for most of people. However, not all people can cure eye bags with restylane. You'd better know what causes of eye bags in order to take proper treatment.