We have been using FurLife pendant for our mini Doxie, Aussie, and Bernese for a few months now. Have not seen any fleas, ticks or any other pests around them at all. We became interested in FurLife when our Bernese started having tremors from Simpiraca Trio. I knew that I wanted to get all of our babies off of any/all neurotoxins. We have had no problems whatsoever since we began using FurLife!