Specifically developed for cats to eliminate unsightly tearstains from the inside out. Angels' Eyes works to prevent tear staining by tying up circulating porphyrins. A porphyrin is a compound that reacts with light to produce a reddish brown stain to the medial canthus. The ingredients in Angels' Eyes will prevent your dog from contracting Ptyrosporin (Red Yeast) and bacterial infections which causes excess tearing and staining.
Follow all manufacturer's directions for use on the package including cautions, first aid and disposal.