Not sure how it works but it smells so bad bad I returned it ASAP
I was super excited to get this and use it on our new couch. It came yesterday afternoon and I opened it right away. The package was really warm from the delivery truck, which didn't bother me. The fact that it could be poured out because it was a thick liquid was okay. The smell was not okay. It smelled like auto mechanic hand industrial hand cleaner.  I can't imagine having to smell that in my house long-term. I returned it this morning.
Rating: 1 stars