I have ordered 4 previous Seresto Collars before. I had no issues. It killed the fleas and was a great price. Always takes over 2 weeks to arrive.
This purchase within 24 hours my dog had a seizure and started shaking and couldn't follow commands. We removed the collar. We tried again since we had NO previous issues. Once it was a max effect and on again after 24 hours he had Another SEIZURE.
We called Bayer who manufactures the collar. They said if it's not from an American business like Petco, Petsmart, Tractor supply, Chewy then it could be counterfeit. I feel this was a counterfeit and had some odd chemical neurotoxin that induced the seizure. Bayer stated they have tested this product with the EPA with 5x the potency without issues.
I contacted United Pet World. They have NO number, only Email. They are out of Singapore- suspect and claim Australian Vets tested. They offered NOTHING! I've ordered many times. Not even a half refund! I had to order another from an American store. Such a waste of $$$
Don't take the chance and cause a Seizure with inauthentic damaging products.
Otherwise, the REAL Seresto works well.So sad they allow inferior pesticides that can hurt animals for a profit! :(
Their overseas tin says Dublin on it and it's not in pounds but Kgs.