Urine salt crystals are the most tenacious component of dried urine, defying conventional cleaners. Most products seek to encapsulate, perfume, dry out the crystals or attack them with weak solutions of generic enzymes -- but the smell keeps coming back. Bio-Pro Research has developed Urine-Off -- a concentrated, urine-specific, bio-enzymatic agent that breaks down the crystals at the molecular level and consumes them. Even the worst urine stains and odors are eliminated. Use Urine-Off safely and effectively on any water-tolerant material including holding cells (walls, floors, mattresses); vehicle seats, floors and carpet; upholstered furniture and carpet (even clothing); toilet areas; and anywhere urine stain/odor is a problem.