Review on Hartz Ultra Guard Flea Tick by Denise Davis

My indoor/outdoor cat hasn't had fleas since I put the collar on (making sure to keep them as free and as free as possible). is nevertheless safe). If the collar is too tight and this insecticide only presses on the bare skin, they can become very dangerous, they can develop a rash/hair loss or ingest most of the insecticide percutaneously, which quickly leads to many complications, including death . I took the time to write this after seeing so many horror stories in the reviews here and then concluded that the active ingredient in this collar is the same as say the $50 collar that only difference is how the drug is released. This is why it is so important not to over-tighten these collars.