This product is really great to apply before applying your under eye concealer because it contains so many healthy and beneficial ingredients that pampers your under eye area before concealer application. It contains boosters such as vitamin E, red wine extract, peptides and marine collagen, all of which helps to disguise and repair fine lines. I definitely see a difference when I apply this and when I don't. The product itself doesn't give alot of coverage, but it does slightly brighten and moisturise the under eye area so that your concealer looks better over it. There is a definite difference in the visibility of lines around the eye area when I apply this product. My concealer always looks much smoother and hides my dark circles more effectively when I've used this product.