Find the cause whether it is due to night time awakening or some cosmetic you are applying under eyes or it is just effect of light (Tyndall  effect)or it is hereditary. Take plenty of fluids, sleep at night at right time. Apply cetaphil moisturing cream around eyes in day time & Fixderma under eye cream at night on dark circles for 3 months. 20 % to 80% improvement depending on the cause.If there is no improvement ,consult dermatologist with MD or DNB Dermatogy qualification.

Hi there...Mild to moderate dark circles often respond well to simple and inexpensive treatments...Try a cold compress, two chilled teaspoons or a bag of frozen peas wrapped in a soft cloth to temporarily reduce dilated and discolored under-eye blood vessels....Elevate your head with two or more pillows to prevent puffiness that develops when fluid pools in your lower eyelids.....Although short nights don't usually cause under-eye circles, a lack of sleep makes you paler and more hollow-eyed, so shadows and circles you already have become more obvious...Consult dermatologist for further help.