The 3 Best Flea Collars For Dogs

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To protect your dog from fleas, you’ll need to use one of the best flea collars for dogs with effective ingredients. Fleas can cause more than just intense itching for your pet. They can also cause anemia, skin allergies, and for your dog to be more prone to tapeworms. Collars are an easy and inexpensive way to safeguard your pet’s health and prevent a flea infestation from occurring.

According to Mike Merchant, Ph.D., an entomologist and professor at Texas A&M AgriLife Research and Extension Center, look for ingredients that not only kill off adult fleas but also the eggs or larvae. Most collars contain insecticides (like fipronil) to destroy fleas and ticks, but for maximum effectiveness, look for other ingredients, too, like S-methoprene, imidacloprid, or flumethrin, which help to kill eggs or stop them before they hatch.

However, if you prefer using more natural ingredients on your dog, there are collars with citronella and other ingredients that help deter fleas, though they won’t kill fleas if some have already landed. If you use them before there’s a problem, many customers have found them to be quite effective. (Some have noted that citronella can cause sensitivities in animals, but many pet owners have used the ingredient without problems.) So ultimately, it's up to you to decide if it's worth the potential risk.

When you’re shopping around for the best flea collars, also pay attention to how long the treatment lasts. You’ll want a collar that can last through your state’s flea and tick season. A quality flea collar should also be water-resistant to keep it effective even after a bath or walking and playing in the rain.

To make choosing your pet’s collar easier, here’s my roundup of the best flea collar for dogs available on Amazon. All of these top-rated flea collars will help keep your dog flea-free and safe.