Nature's Miracle No More Marking Stain & Odor Remover - From petco.com The all natural pet repellent prevents your dog from revisiting the same spot twice! When sprayed on previously marked areas, Nature's Miracle No More Marking eliminates the stain and odors but leaves behind scent repellents. These scent repellents prevent your dog from returning to the area, but leave behind a nice cinnamon and lemon grass fragrance that is pleasant to humans. Ideal to use when training puppies or dogs, to stop repetitive marking and to eliminate deep-set in stains and odors. Safe to use around children and pets, when used as directed.