Review on 🐱 Hartz Ultra Guard Flea & Tick Collar for Cats and Kittens - 2 Pack by Jason Glass

This product poisoned our two cats - they were close to death. Do not buy. $800 tests and blood that don't say anything. We removed the collars when all the evidence emerged that the only common factor between both cats becoming terminally ill was the collar within about a week of wearing it. They became lethargic, not eating, unable to get in or out of the car box, confused, sluggish and not speaking. Difficulty swallowing. We thought we'd have to put her to sleep. After about 18-24 hours without collars we saw an improvement. It's been about 4 days without a collar and they're back to normal. These collars should be withdrawn from sale. I'm sure they would have died if we had left them on.