Tear Stain Remover Safe for All Dogs and Cats Description: Four Paws Crystal Eye has been formulated to remove tear and other stains from the animal's fur which takes away from the natural beauty of your dog or cat. Crystal Eye has been tested by professional groomers and breeders and proven to be the ultimate in tear stain removers. Directions For Use: Saturate a clean cotton ball or cloth with Crystal Eye. Gently wipe the stained area, using a clan cotton ball for each eye. Stubborn stains may require several applications. Regular use of Crystal Eye will prevent staining. While Crystal Eye is safe, we suggest extreme care be taken when any product is used around the eye area. Crystal Eye can also be used on Boxers, Bulldogs, Sharpies and similar breeds to clean between the folds of their skin.