I ordered Bi-Odor but was shipped the WORTHLESS, INEFFECTIVE GoodBye Odor instead. The products are completely dissimilar, with totally different ingredients. Needless to say, I was distressed. Still, having had excellent results with Bi-Odor, I decided to give GoodBye Odor a try. What a disaster. The best that I can say about this awful product is that it didn't harm my animals. Please note that both Bi-Odor and GoodBye Odor, despite being completely different formulations, are listed by Marshall with the same item number: FS-221 and the original formulation (Bi-Odor) seems to have disappeared from retail.