Steam eye mask can generally improve the dark circles caused by poor lymphatic circulation, but the effect is very slow, need to be used for a long time; for the sunken dark circles have no effect, you should take the medical method. 1. Poor lymphatic circulation: steam eye mask can effectively strengthen the skin around the eyes of the hydration and moisturizing effect, can promote blood circulation around the eyes as well as lymphatic circulation, can improve the dark circles caused by poor lymphatic circulation, but need to be used for a long time, there is no effect in a short period of time. 2. Sunken dark circles: Sunken dark circles wear steam eye mask has no practical effect, generally recommended through the medical project, such as laser or radio frequency to improve dark circles. Steam eye mask is just an auxiliary product that can relieve eye fatigue, if the dark circles have not been improved, it is recommended to look for formal hospital treatment.