I've had a bottle for like 7 yrs it's almost gone while training my first puo she had mishaps on my carpet this stuff is amazing 👏 😍 I now have a new pup with my old girl he peed on my rug remembered that I may still have some I went looking and found the last drops it cleaned his piss mark and my tea that he made me spill. .overall I love thus stuff and you would wonder how it will clean so well being it just looks like water.