Angel eyes is a waste of money in my opinion. There are these pads called Duoxo 30 pads, they sell them on Amazon at a ridiculously inexpensive price. You wipe the folds every day and it makes all the difference in the world. Buster had really bad tear stains and the vet sold us a container of these and they have all gone away and have not come back. They really work well and you'll notice a difference really quick.