Urine Off Odor & Stain Remover for Cats (32 oz.) by Bio-Pro Research, LLC breaks down uric acid salt crystals off cat & kitten urine, eliminating the primary trigger mechanism for "marking". Not a perfume or cover-up - it actually eliminates all three major components of cat & kitty urine. Removes cat & kitten urine stains - including stains many years old. Special thick formula, perfect for "tomcat" urine sprayed on vertical surfaces Pheromone blockers help train cats from future marking. Tough formula works on even old stains, removing odor & old urine deposits. Removes urine odors and stains from litter boxes, leaving them clean and fresh smelling. Gets rid of stains on carpets and other surfaces caused by hairballs and vomit, including pet food dyes. Also works on feces, bile, blood and other body fluids including organic stains. Effective on hard and soft surfaces, including hardwood floors, grout, fabric and upholstery, tile and carpeting. NO alcohol, peroxide or bleaching agents. Safe to use around people and pets. Urine-Off Directions Product Reviews You probably do not have the Flash Player installed for your browser or the video files are misplaced on the server!