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110,258
4.4 out of 5 stars

Seresto Large Dog Collar- Flea & Tick Treatment

$51.99
$59.91 13% off Reference Price
Condition: New
Style: 1 Pack
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Top positive review
10 people found this helpful
Great product, highly recommend!
By smitty j on Reviewed in the United States on September 11, 2025
I have a great dane and a doberman, I purchase these every year and have never had an issue with fleas or ticks so the price is absolutely worth it. It really does seem to last 8 months and we live in a fairly heavy wooded area and have tons of insects most of the year. It doesn't leave residue on the dogs, it's not messy, and doesn't smell. No issues if they happen to get wet from rain but my sissy dogs don't care to be out in the rain for too long, lol. I don't use any other medicines or collars for flea/tick prevention because these work just fine for us. These collars have never irritated their skin and have never fallen off, very durable and long lasting. Great product!
Top critical review
May or may not work
By Christi Laneve on Reviewed in the United States on October 24, 2025
I have purchased these several times from Amazon for my 3 dogs (Doberman, standard dachshund and mini dachshund). The first time, they worked great. The 2nd, not as great but still effective. This year, I guess the fleas are immune or something because it's been awful. They are on prescription medication from the vet after fighting it on my dachshunds. They told me many people have complained about getting fake collars. So I'm unsure what to believe. I've even treated my yard all summer. Sigh.

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