"Natures Way Is The Best Way". When you use chemicals to remove odors and stains you may be adding pollution to pollution. When you use bacteria to remove odors or stains this is the natural way. It usually takes a little longer but the odor or stain is completely eliminated. Bacteria actually grow and produce enzymes and they break the urine or stain down, small enough for bacteria to eat. Bacteria eat it, digest it and turn it into water and carbon dioxide. UNIQUE PET ODOR & STAIN ELIMINATOR enhances this natural process hundreds of times. So the odor and stains are gone in hours.UNIQUE PET ODOR & STAIN ELIMINATOR is liquid bacteria producing enzymes. This product contains only non-pathogenic bacteria. This product is safe to humans, animals and plant life and it is biodegradable and safe to use on all surfaces that can be cleaned with water. The bacteria and enzymes in this product start to work (digesting and multiplying) when they are exposed to air moisture and food.