In case the dark circles are caused because of lack of sleep or due to fatigue, then adequate sleep can help you get rid of the problem in a quick time. It is true that dark circles are mostly the results of sleepless nights and also lack of vitamin C. So, getting moe sleep and also introducing more of Vitamin C to your diet can help you get rid of dark circles. It would take at least 2 weeks to see a difference with dark circles if you work on these. The fastest way to remove dark circles is by paying attention on things that might be causing them and trying out the best possible ways to get rid of them.