Why we face dark circles?
The answer is that the area below our eyes is very thin and prone to high release of melanine. To avoid dark circles just dip green tea bags in hot water. after some time take it out and keep it in the refrigerator for 20 minutes.
Meanwhile clean your face and after 20 minutes keep the cool tea bags on your eyes. It will be very soothing and at the same time reduce your dark circles.