Crystal Black Enzyme Shampoo Not only improves dark or black coats, but also helps to remove tears, saliva & urine stains. Works wonderfully on black, silver, and gray colored pets! Crystal Black Shampoo uses coconut based cleansing agents to effectively remove oil based soil. This complex removes stains caused by urine, grass, blood, saliva and other organic soil. This formulation is fortified by the addition of moisturizing agents that leave the coat and skin in great condition. May be used on cats 8:1 Concentrate