I've been giving our Graysee Angels' Eyes, as well as distilled water with ACV for about three months now, and STILL see no improvement in the quantity/frequency of her tear stains. I often have to clean her eyes DAILY to keep the crud from forming. I have found that the powder from Eye Envy tends to mitigate the stains a little. I have to be very careful about placing that near her eyes, though, as it does contain boric acid, and that could burn a little if she got any into her eyes. I will stick with the Angels' Eyes until the bottle is empty, but if it doesn't result in any significant improvement, this will be the first and LAST bottle that I purchase!
