I read online the possible causes of tear stains, and food and water are two of them. Cinnamon eats Royal Canin Yorkie and also Royal Canin Special Mini, and she used to drink Brita filtered water. At that time, she never had any problems with tear stains. Then I switched her to bottled water (Costco Kirkland brand) for three weeks, and not only did she have tear stains, but the tear stains became hard like rocks. It was awful and really, really, REALLY hard to clean. Once I cleaned it up, it was back in a couple of days. I've never seen anything like it. Well, the water had lots of minerals in it, and so I looked it up online and read that water with lots of minerals can cause tear stains. I then switched to distilled water (Whole Food's brand), and no more tear stains or those hard rocklike things. |