To remove your dark circles or dark pigmentation from under your eyes you can take either orange juice or lemon juice and apply either the lemon juice or orange juice to a cotton ball and then apply the lemon juice or orange juice to dark circles or pigmentation and leave the orange juice or lemon juice on the dark circles or pigmentation for at least 10 minutes.
Then after 10 minutes you can wash the juice off your eyes. You might have to do this once or twice per day for up to a week to fully get rid of the pigmentation or dark circles from under your eyes.
Tea bags are also another home remedy for removing pigmentation and dark circles.