Garnier Eye Roll On

Apparently one of these is sold every 15 seconds. Why? This product is totally useless.
I've always had dark shadows under my eyes, due to the main vein underneath being clearly visible under my skin, so was eager to try a product that claims to be very worthwhile.
I bought this for half price, and even then it wasn't cheap. An utter wasye of money. You're better off sticking to old wives' favourites like using cooled teabags or cucumber slices.