Hartz UltraGuard topical liquid products for cats all contain the active ingredient etofenprox. Etofenprox is classified as a synthetic non-ester pyrethroid that is effective against fleas and ticks.
I saw something new in Costco the other day and wanted to check it out. Costco has a new flea treatment. It’s Kirkland Signature and it claims to kill fleas, 4 types of ticks, and kill and repel ...
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