Review on Hartz UltraGuard Collar Kittens Protection by Sean Burnett

I tried these collars on my 12 week old kittens hoping they would get rid of the fleas but they did NOT work. The kittens scratched them all the time and I didn't like how thick and smelly the collars were. After wearing them for 5 days and seeing my kittens continue to scratch, I checked and still saw LOTS of fleas (>30)! I followed the instructions carefully so it wasn't a mistake. I don't know how long it usually takes to see results, but at this point I will go back to flea baths and seek professional help from a vet. These collars were a waste of money and time!