I'm 18 years old, get plenty of sleep, and moisturise diligently yet under my eyes is very dark and I have deep lines. I'm sure my problem is genetic but I'd like to do something to lessen the appearance. When I want to put on a bit of eyeliner, sometimes the product sinks into the lines. I'm of Mexican/Russian/Middle Eastern ancestry so I have light olivey skin (if that helps). I've heard that dark circles might be a milk allergy reaction so I'm cutting out milk products to see how that goes.