I used an entire bottle, completely followed directions over a period of about one month. Yes, it did destroy the odor from human noses, but not from dog noses. My dog still finds the exact spot and continues to mark it. Buying him diapers for indoors. Also, no damage to my carpet but the wood trim above the carpet is now several shades lighter then the rest of the trim. Now I have to restain and try to match the dark wood trim. I am asking that My Pet Peed keep their promise and refund my money. Sorry, it did not work.