This page tracks active recalls and voluntary withdrawals for flea collar products sold in the US. Last verified: April 13, 2026.
No active recalls on any flea collar product listed in our reviews as of April 2026. This includes Seresto, Hartz UltraGuard ProMax, Hartz UltraGuard Plus, Adams Plus, TevraPet Activate II, Zodiac, and Wondercide.
The most recent action was Hartz's voluntary withdrawal of specific cat flea collar SKUs in 2022. This did not affect the dog collar product line. Full details are on our Hartz recall history page.
We verify recall status quarterly against the EPA PRIA database and ASPCA Animal Poison Control records. For the most current information, check: EPA Pesticide Registration database at pesticides.regulations.gov, and the ASPCA Poison Control at (888) 426-4435.