Dark circles under the eyes are caused by prolonged late nights, tired mental state, insufficient oxygen supply to the red blood cells of the eye skin, eye fatigue, excessive eye use, and too slow venous blood flow rate. To get rid of dark circles quickly, you need to start by developing good habits and loving your eyes. In addition, the following methods can be used: First, alternating hot and cold towels on the eyes, can make the blood vessels in the eyes for varicose, clear the melanin deposits in the blood vessels. Two, cucumber hydrating eye mask, can make the eye skin elastic, increase nutrition, speed up the metabolism in the blood vessels, to maintain sufficient moisture. Third, do eye massage before going to bed, drink the right amount of water, to the eye massage can relieve eye fatigue, so that the eye to get rest and increase the oxygen supply capacity of the tissue.