Created by Bayer and recommended by vets, the Seresto flea and tick collar for large dogs provides 8 months of continuous protection from blood-sucking ticks and fleas. It offers a continuous release of medication (flumethrin and imidacloprid) at a slow speed, which saves you the hassle of giving your dog more regular treatments.

This 8-month flea collar has several advantages over other treatments including being mess-free, odorless, and non-greasy. Since it kills ticks and fleas upon contact, the fleas don’t have to bite your pup for it to work. The collar easy to put on and it’s compatible with leash collars as well, making it one of the best options on the market!

Don’t be fooled by the fresh scent of this flea and tick collar by Hartz Ultraguard; it will kill and repel fleas, ticks, eggs, and larvae despite not having that strong odor most effective collars sport. As a bonus, it comes with a reflective strip that can be seen 300 feet away, offering an added layer of safety during low-light conditions.

Made for puppies at least 12 weeks old and adult dogs, it will fit neck sizes of up to 22 inches, so get the tape measure out before purchasing. It is designed to be water-resistant, so you don’t have to worry about taking it off if it starts pouring outside. Most importantly though, the Hartz Ultraguard collar offers full-body protection for up to 7 months, making it perfect for outdoor pets.

If your dog struggles with ticks on a regular basis and you’re tired of searching and pulling them out manually, check out Virbac Preventic collar. Designed to detach and kill ticks for a period of three months, this product is one of the most recommended by veterinarians.

Effective and fast-acting, the Preventic gets to work within a period of 24 hours. It works on both short and long-haired breeds, so we highly recommend it if you and your pet are fans of nature walks. Bear in mind that while the collar is adjustable, it is designed for dogs weighing over 60 lbs.

Give your dog effective protection against ticks, fleas, eggs, and larvae for seven months from the moment you put this collar. As well as repelling these nasty pests, the Adam Flea & Tick Collar also kills them and breaks the flea life cycle to prevent re-infestation.

The collar is also water-resistant, so a good choice for active pooches who like the occasional dip in the water. The adjustable design means that it is suitable for most breeds or dogs with up to 26-inch necks.

If your dog has super-sensitive skin and cannot stand harsh chemicals, we recommend this herbal repellent by Mercola. Effective for up to three to four months, it works to repel ticks, fleas, and mosquitos in a gentle way. The active ingredients continue to slowly diffuse over time, and its waterproof design ensures that it continues to work well, even if it happens to get wet.  

Suitable for puppies, adult dogs, and cats, it uses a special blend of essential oils rather than the harsh chemicals which are used in other similar products. While natural and gentle, bear in mind that this type of a product is not as effective as collars with harsher chemicals so it may not be suitable for outdoor pets who spend all or most of their time playing in long grass.

Containing only natural ingredients, including a host of essential oils that kill and repel fleas and ticks, this is one of the best dog flea collars when it comes to natural products. Soaked in a highly effective blend of herbal ingredients, the collar provides an amazingly effective defense against fleas and ticks and other insects for up to 6 months, even if your dog wears it while taking a bath or swimming.

Some of the ingredients used include essential oils from peppermint, cinnamon, clove, rosemary, and more – all proven to repel many species of insects, plus fleas and ticks of course. Best of all? Because this is a natural and perfectly safe flea and tick collar, it can be used on both adult dogs and puppies.

Looking for a broad-spectrum flea and tick collar? Check out Inspector’s Flea & Worm collar as it both kills fleas and ticks and prevents against roundworms and hookworms. The collar is quite powerful because it contains highly effective anti-flea and tick actives such as ivermectin, fipronil, and pyriproxyfen, all proven to kill fleas, ticks, lice and flea larvae, plus internal parasitic worms.

While powerful, this is not a particularly long-lasting flea and tick collar for dogs; instead of the usual 6 to 7 months protection, the Inspector provides a 4-month defense against internal and external parasites.