Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs and Puppies, 7 Month Flea and Tick Prevention Per Collar, 2 Count

Q: In reality, how long is this effective? They say 7, which is marketing for 2 or 3 months, in the real world.

Don’t use this! Read the reviews, it is dangerous

Q: Anybody elses pup get diaherra?

It made my dog so sick. He couldn’t keep anything down. I threw it away and went back to a monthly liquid on his fur.

Q: Is this a fake product?. The package doesn't list ingredients like the real brand.

In the product page, it is not shown, you are right about judging it. But the front of the pack lists active ingredients and at the back of the pack you will see directions for use and also a lot of information. You can trust the product, it is NOT fake