Hello there...I can understand your concern. Dark circles can occur due to a number of reasons like poor diet, lack of sleep, hereditary, stress, thyroid disorders, vascular abnormalities. It would have been better if you had posted a photo of the prescriptions you have been using. You must understand it is very difficult to get rid of dark circles. Use a sunscreen regularly, to prevent further increase in pigmentation. Consult a dermatologist for further evaluation and treatment.