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The Best Dog Flea Collars

We compared five flea collars for dogs, using owner ratings and expert reviews. The Seresto Flea & Tick Collar for Dogs Over 18 lbs. is our top pick for its effectiveness and long-lasting protection.

Updated

The bottom line

The Seresto Flea & Tick Collar for Dogs Over 18 lbs. (asin B00B8CG602) is our top pick for its vet-recommended, long-lasting protection against fleas and ticks. With an average owner rating of 9/10 from 114,711 ratings and a price of $50.93, it offers 8 months of continuous protection. The closest alternative is the Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 2-Pack (asin B00WMMMHNM), which provides the same protection but at a higher price of $107.92 for two collars. For a budget option, the Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies (asin B000633VEI) offers 7 months of protection at $3.4, though it is less effective and has fewer owner ratings.

Top pick
Seresto Flea & Tick Collar For Dogs Over 18 lbs.Seresto Flea & Tick Collar For Dogs Over 18 lbs. $50.93

Best overall flea and tick protection

The Seresto Flea & Tick Collar for Dogs Over 18 lbs. is vet-recommended and provides 8 months of continuous protection. With an average owner rating of 9/10 from 114,711 ratings and a price of $50.93, it is effective and affordable. The tradeoff is its higher price compared to budget options.

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Runner-up
Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 2-PackSeresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 2-Pack $107.92

Best for multiple dogs

The Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 2-Pack offers the same protection as the single collar but at a higher price of $107.92 for two collars. It is suitable for households with multiple dogs.

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Budget pick
Hartz UltraGuard Flea & Tick Collar for Dogs and PuppiesHartz UltraGuard Flea & Tick Collar for Dogs and Puppies $3.40

Best budget option

The Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies provides 7 months of protection at a low price of $3.4. While it has fewer owner ratings and is less effective than the Seresto collars, it is a good choice for budget-conscious buyers.

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The field, ranked

  1. Seresto Flea & Tick Collar For Dogs Over 18 lbs. Best for long-lasting, vet-recommended protection 9.0/10 $50.93 Amazon
  2. Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 2-Pack Best for households with multiple dogs 8.5/10 $107.92 Amazon
  3. Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar Good for small dogs, but more expensive 8.0/10 $59.97 Amazon
  4. Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies Best budget option, but less effective 7.0/10 $3.40 Amazon
  5. Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies Similar to B000633VEI, but with a smaller neck size fit 6.5/10 $10.45 Amazon

Owner complaints

Some owners of the Seresto collars reported issues with their dogs experiencing itching or allergic reactions. However, these complaints were relatively rare compared to the overall positive feedback. Owners of the Hartz collars mentioned that the protection was not as effective as advertised, and some dogs developed skin irritations.

Also-rans

The Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar (asin B00B8CG58U) and the Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies (asin B0GWRVRKMV) did not earn picks due to their higher prices and lower effectiveness compared to the top picks.

How this was put together

This guide is based on expert reviews, owner ratings, and video reviews of five flea collars for dogs. We counted the number of owner ratings, read through owner comments, and considered the price and duration of protection for each product. We did not test any products hands-on, and our evidence is limited to the information provided in the dossiers.