Dark Eye Circles

My biggest problem has got to be under eye dark circles - i always seem to have them. My mum says its because i dont get enough sleep. I have also been told it can be that i dont drink enough water. I am going to try for the next month to get 8 hours sleep every night and try to drink 8 glasses of water a day to see if this makes any difference to my dark circle problem. I have tried a number of different products to try and reduce my circles but none have dramatically worked. The only thing that works for me is to apply conclearer and then over the top i apply a light reflecting conclearer pen - and even then i can still see the circles slightly!

Does anyone know of any products that could help me?