Both dietary and environmental toxins contribute to tear staining. That includes cleaning products, laundry products and everything with a fragrance. So can Pesticides, lawn and garden chemicals and petroleum products. Vaccines and worm Meds, and all other meds can also cause cause staining, as well as ear discharge, skin eruptions and seizures. Feeding the best specie appropriate diet, sans grain, potatoes & food additives goes a long way to helping keep your pet healthy, but its implant to remove environmental toxins as well. 🙂
