Pet Organics No Mark

Not sure how effective this product is. It seems to work at first but then the cats get use to the smell and will remark their spot despite how many time I spray.

Pros: Fair results

Cons: Fair results

With any of these synthetic pheremone sprays, I personally think it is difficult to tell whether they work. If you are dealing with this problem, you address the problem by buying out the shelves and use any/every product/trick out there. I think No Mark does help and it is less expensive than some of the other brands. I am afraid to stop using it as the alternative is pretty disgusting and can be quite costly. A $10 bottle of No Mark is worth it for the peace of mind.

Pros: less expensive than many of the other synthetic pheremones

Cons: n/a