Id just like to say that ive been struggling with this unbearable problem myself for what seems like the looongest time now. Im 28. Huge veins under the eyes, dark lines on the inner corners. It just DAWNED on me that i read dark circles are due to too much sugar!! Or sugary, dirty blood rather. And ALSO, that BLACK TEA and also COFFEE help to STABILIZE BLOOD Sugar AND HELP DETOX THE LIVER AND BLOOD. Yeah. Guess what?? I drank TONS of coffee a few yrs back (too much) and i didnt have these circles then! Ok. SO. Look it up!! Please. even dr. ox suggests drinking two large coffees a day to help the circles. (For those of u who like him) Well i can already feel my face is fresher like it used to be. !!