Snowy Blue Shampoo has maximum optical brightening especially formulated for white long and short haired breeds. For stains use full strength and leave on 10 minutes. This procedure may have to be repeated several times, but it definitely will reduce stains, if not totally remove them. For stains under the eyes, paint on full strength with a "Q-TIP," let stand and rinse with a damp cloth.
Recommended dilution: soft water - 4 parts water to 1 part shampoo; medium water - 2 to 1; hard water - full strength.