Bests & Worsts Reviews from Amazon

I think this collar is an acceptable option for those who are skeptical on how well monthly topical solutions perform. Especially on the third or fourth week of use with those competitors. In my experience now with three different dogs wearing these collars, I have only found ticks a few times, and this is normally around the seventh or eighth month of use. This is my indication that it is time to change the Seresto Collar. After two years of using Seresto I will not be purchasing these again. Two of my dogs have developed a terrible reaction to the chemicals that resulted in a nasty rash that needed treatment with antibiotics to prevent infection. They developed these rashes over time perhaps due to the gradual exposure to the chemicals. Chemicals the collars are designed to release to prevent fleas and ticks. I assumed my first dogs reaction was just a unique experience, but the most recent happened just this past week of 01/09/17. I will not let it happen a third time. It is effective at what it does, but as might be the case for some users and their pets, it might be too effective.