Excellent for tear stains, saliva stains, grass stains, urine, and feces. Works well in conjuction with Crystal White Shampoo for breaking down protein-based stains. Heating the solution will improve efficacy. To use, saturate a cotton swab and message into the hair and skin below the eyes. Safe for dogs and cats. Do not put the solution into the eye; rinse eyes with warm water if solution gets into the eyes.