@bruno.my.frenchie: Just a tip for my doggie owners out there!!! Filtered water can help reduce tear staining in dogs because it removes substances that may contribute to staining around the eyes. Tear stains are usually caused by a pigment called porphyrin, which is naturally present in tears and saliva. When tears sit on the fur, porphyrins oxidize and create the reddish-brown stains you see. #dogtears #tearstains #dogcare #frenchie