If it is due to congenital genetics, sagging skin resulting in dark circles, using potatoes to compress does not have any effect, with how long can not remove the black circles, it is recommended to go to the hospital to do pulse laser to remove them. If the dark circles are formed by poor blood circulation around the eyes due to long-term late night, cut the potatoes into thin slices of about 2cm and clean the face with warm water every night, put the cut potato slices on the area of the dark circles and stick with it for about 30 days to make the dark circles lighten or disappear. Potatoes are rich in vitamins and minerals that can penetrate the skin, inhibit local melanin formation, and accelerate local blood circulation to reduce or disappear dark circles. Prevention is better than cure, usually less late night, every morning and evening in the eye area rub suitable for their eye cream, 1-2 minutes a day to do eye massage can delay or prevent the appearance of dark circles.