Emma, I am impressed! That corn starch treatment really worked. Thankfully the stain was on the seat of the chair so it was easy enough to apply the cornstarch and keep it in place long enough for it to do the job. I put a lot on and covered it with a paper towel and then a bath towel over that and we used the chair that way for two days. Then I took a wisk broom and brushed all the cornstarch off, which actually took a bit of effort to get it all off and it still had an outline of some of the stain in white cornstarch. But after another couple of days of just having the bath towel over it, I just checked it this morning and I can't see any stain or cornstarch residue. Excellent tip, Thanks so much! :-)

I don't know what to use, but my carpet cleaners I used for our rental said they could not get out cat urine, they wouldn't even try. They can get out dog urine. Good luck.

Urine off is suppose to be a very good product. All the products like Urine off may have to be reapplied a few times if it is really bad. Very important to pour a lot of the product on so it will soak. Must air dry. Many people put plastic over it so the product doesn't evaporate. Should be soaking for as many hours as possible. These products don't work within a half hour. Nature's Miracle is also highly rated. Same principle as Urine off. If you have used Urine Off correctly and tried in a few times, try another product like Nature's Miracle. It is actually more important to get rid of the odor. Depending on a number of factors, you may or may not get rid of the stain. If the stain is only on your hardwood finish, sanding will remove it. If the stain goes down to the wood, it would have to be sanded and then try these products again. Last resort, use wood bleach or replace the boards.

Baking soda and vinegar cancel each other out, but not hydrogen peroxide (although the reaction might weaken it). One site suggested a vinegar and water mix, followed with baking soda, but that didn't work for me. I've read Nature's Miracle changed their formula and doesnt work as well as before. There are other "enzyme" products - I tried a pet store version which didn't work. A new one called Anti-icky poo is really expensive. Guess I'll try the hydrogen/baking soda version, and will buy a black light to see if the cat urine stain is still there (and elsewhere). And I PROMISE to post back my results.....just like the person below did, lol. Vanessa Buddle So yes this original post was along long time ago,but I’m at my wits end with my baby boy peeing all over my brand new house and brand new couch. I’ve been using straight vinegar on the spots straight after he’s pee’d there,it’s not helping at all and after I close the house up,even just for 5 mins,it absolutely reaks from him marking his territory. I can’t get angry with him as it’s a natural act that he is doing,but it’s at the point where I can’t eat in my house or have people over. This smell has to be gone before summer otherwise it’s going to be unbearable. I know that getting him desexed may not solve this issue and that’s my worry as he’s a rag doll and I breed them.(in saying that,he only started marking the place after that last litter.the litter was mainly boys and I think he felt intimidated)anyway,please wish me luck and I will definitely let you know the results after trying this recipe.Tia September 5, 2018