[JoJo]

OK, I noticed that you live in Colorado. I'm going to put myself on the spot here and say that "normally" you wouldn't have fleas. Am I correct? I say this as when my daughter lived in Wyoming, they never had fleas and they couldn't find any flea control product if they wanted to. Their Vet didn't have any such thing in his practice. I want to say no fleas due to the high altitude?

Are you having a flea problem or are you just assuming that you need to have flea protection? If a flea problem, I wouldn't by anything that you can buy at the grocery store! That stuff is just plain dangerous. Can cause seizures or even death. If worse comes to worse, you could go online and order from PetMeds.