As the owner of a pest control company I try many different rodent lures and baits. This product is by far the worst I've seen in years. Tried Pro-Pest Professional Lure in several traps including interior, exterior, for both mice and rats, without a single hit. This product also dries out and becomes ineffective very quickly. Go with peanut butter -- you can't go wrong with it.
I think the rats in my house are pretty smart, the just ignore this (I think will work on other less intelligent ones), But this is a review so I just want to make clear: did not attracted (well at least did not scared the rats, which will be something)