Seresto Flea Collar Review: Is This the Best Flea Collar for Dogs?
After asking a variety of veterinarians and dog parents, and doing an informal poll on social media, I kept hearing over and over that the Seresto Flea & Tick Dog collar is the best flea collar for dogs.
After inquiring “is Seresto safe?,” “does Seresto work?,” and “what are the Seresto collar side effects?,” my best buddy, Haiku, and I took it upon ourselves to find out and bring you this Seresto Flea Collar review.
I must quickly add, however, that I did not try the Seresto Flea & Tick Dog Collar on Haiku without first getting approval from his personal veterinarian.
Why Is My Dog so Itchy?
While more than 2,000 species of fleas exist, the cat flea (Ctenocephalides felis) is most responsible for your dog’s itching. Fleas can be an annoyance, but to some dogs, one or two bites from a flea can make your best friend miserable!
Flea saliva contains an anti-coagulant and other components that can result in severe itching that lasts for weeks after the bite. Referred to as Flea Allergy Dermatitis, the result is raw, irritated patches of skin on your dog.
Even if your pooch doesn’t go outside much, he can still get fleas as these parasites come indoors on our clothes or jump across thresholds. As a dog mom or dad, it is up to you to find the best flea collar for dogs to prevent this suffering.
If you notice your dog scratching, but don’t see fleas, take a comb with tiny, close-together teeth down his back and over the base of his tail. As you pick up grains, dump them onto a dampened paper towel.
If the debris sits there, you’ve combed up dirt and dander, but if the paper towel turns pink, those grains are dehydrated blood from your dog (aka flea dirt) and you need to help alleviate his itch as well as prevent more of those critters from getting on him.
We have determined what we feel the best flea collar for dogs is, so please continue reading this Seresto collar review.
Before we get to the Seresto review, however, I’d be remiss if I didn’t mention another pest that can make your dog miserable — the tick.
There are more than 800 species of these tiny arachnids that, like the flea, feast on the blood of your dog. Ticks live in grassy and wooded areas around the world, mostly in warm, humid climates, but some species can be found in more arid parts as well. Not all carry diseases, but many do.
Where you and your pooch live will help determine the best methods of flea and tick prevention to use on your dog. I talked to Julie Buzby, DVM, CVA, CAVCA and Founder of Dr. Buzby’s Innovations and this is what she wants you to know.
With ANY medication, there are risks, but the risks are low for these classes of drugs when used as directed. The risks associated with your dog not being protected however, can be very high, depending upon where you live or travel.
Julie Buzby, DVM, CVA, CAVCA
Speak to your veterinarian who knows your dog’s health history and what tick diseases are prevalent in your area.
Seresto Flea Collar Review
Seresto Flea and Tick CollarCheck price »
- Effectively kills and repels fleas & larva BEFORE they lay eggs
- Effectively kills and repels ticks – adults, babies & larva
- Aids in the treatment and control of sarcoptic mange in dogs
- Kills chewing lice
- Provides odorless, non-greasy, and easy-to-use protection
- Water resistant, remaining effective after shampooing, swimming, or exposure to rain or sunlight. NOTE: To ensure extended effectiveness, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to five months for flea control, and seven months for tick control. If you’re looking for the best dog shampoo, check out our review.
- Nontoxic should your dog chew on his collar (but obviously, not advised)
- Quick release mechanism to prevent strangulation
- Visibility reflectors for nighttime safety
- Shows up on an x-ray (“radio-opaque”) should you suspect your dog consumed it
- May take up to two weeks to be fully effective
- Some dogs have a reaction around the neck from the collar
- Chance of seizures in some dogs
- Expensive initially, but due to long-lasting effectiveness, reasonably priced when compared to monthly treatment options
How Does Seresto Work?
Some preventatives repel parasites, some kill, and others treat or prevent the life cycle from continuing by sterilizing eggs and the young. All good intents, but those that just kill or treat may still allow the parasites to bite your dog, causing irritation and disease.
The best flea collar for dogs is one that repels fleas and ticks BEFORE they have a chance to bite and kills them on contact (not just after they have sunk their teeth into your dog). One that is multi-purpose, killing more than one type of parasite, is a plus, and the Seresto collar gets high marks in all these areas.
The Seresto Flea & Tick Collar releases a low concentration of two active ingredients that are stored and slowly released from Bayer’s special designed matrix collar: imidacloprid (an insecticidal neurotoxin) and flumethrin (insecticide with low toxicity to mammals).
As the ingredients wear off, they keep on replenishing for up to 8 months, distributing over your dog’s skin and coat. Fleas and ticks are killed through contact with the ingredients, no biting required.
Haiku wearing his Seresto flea collar while hiking
Is Seresto Safe?
Each dog is unique. What is safe for one may not be safe for another as each has his own sensitivities. Overall, my experience and the feedback I received seem to point to the fact that Seresto collar side effects are minimal and infrequent when used as directed.
Human error can lead to problems, so follow directions implicitly and monitor your dog no matter what preventative you use. At the first sign of something not quite right, contact your veterinarian.
What Makes Seresto the Best Flea Collar for Dogs?
Number one would be that it does the job. The Seresto Flea & Tick Dog Collar is keeping my dog free from annoying bugs in our lush and humid southeastern climate. No fleas and ticks means that Haiku won’t suffer from Flea Allergy Dermatitis or contract Lyme, Ehrlichiosis, Hepatozoonosis or other tick diseases.
Additionally, the collar is odorless and non-greasy, so it doesn’t get Haiku’s fur oily or interfere with his sense of smell, and isn’t greasy when I touch his neck. Since it is water resistant, I don’t have to reapply after each bath or even monthly, so it is one more thing I can’t forget to do.
Putting on the Seresto Flea Collar
To perform a fair Seresto dog collar review, I talked to my veterinarian and followed directions carefully. I learned to tell a real from a fake, and purchased one within expiration date and the appropriate product for the weight of my dog.
After taking the collar out from its packaging, I unrolled it, removing the small plastic connectors. Next, I placed the Seresto Flea & Tick collar around Haiku’s ultra-furry neck and inserted the end through the buckle and loops. I adjusted it to fit comfortably, yet made sure two of my own fingers could slide between the collar and Haiku’s neck to assure it wasn’t too tight.
Buckles on the Seresto flea collar
I also applied the 3 optional reflector clips and then supervised, checked, and observed my boy to make sure the collar did not loosen or tighten, and most importantly, to stay vigilant that he was not suffering any ill effects.
Buckles on the Seresto flea collar
Seresto Flea Collar Specs
Large Dog Collar
- 27 ½” (69.85 cm)
- For canines over 18 lbs.
Small Dog Collar
- 13 ¼” (30.48 cm)
- For canines under 18 lbs.
Both collars contain imidacloprid, which targets both fleas and their larva, and flumethrin, which repels and kills ticks – adults, babies, and larva – for up to 8 months.
Seresto Flea Collar Main Features
- Active ingredients are stored in the specially designed polymer collar’s unique matrix
- Large collars can be trimmed to fit your dog’s neck
- Small dog collars have “zig-zags” that are pre-determined breaking points to better size
- Collar has a ratchet release system to remove quickly
Seresto Flea Collar Side Effects
Just watch commercials advertising pharmaceutical drugs for humans. It can scare the pants off you when you read the potential side effects. Every medication, even natural remedies, may not agree with all.
When putting anything on, in, or near your dog, it is critical to read and follow directions exactly and get prompt medical attention for any negative side effects. Infrequent yet adverse reactions to the Seresto Collar include the following that have been reported:
- Itchy skin, redness, and irritation resulting in hair loss
- Nausea & vomiting
- Red eyes which disappear upon removal of the collar
- Spontaneous abortion and birth defects
Additionally, FAKE Seresto Flea & Tick collars are out there. Low price ($30-$40) might be your first clue. There are several tell-tale signs, including flat paint on the inside of the lid, stickers on some rather than embedded printing, or lack of a seal.
Sometimes, in fact, you get what you pay for. Don’t risk your pet’s health and safety over saving $10 or $20! Watch the video below for details so that you and your best friend don’t get scammed!
How Long Does it Take for Seresto Collar to Work?
I aim to be proactive, so Haiku started wearing his collar BEFORE fleas or ticks had taken up residence, yet I did catch him scratching before applying the collar.
The packaging claims the Seresto Flea & Tick Collar for Dogs begins killing existing fleas within 24 hours. Once on your dog for a full day, the Seresto collar will kill re-infesting fleas within two hours and repel and kill ticks as quickly as 6 hours after applying. Some claims, however, state that the collar may take up to two weeks to be fully effective.
What Do Other Seresto Flea Collar Reviews Say?
Laurie Adams Barre, Louisiana dog mom, swears by the Seresto Flea & Tick Dog collar:
I have used Seresto collars for more than 6 years. I had a Basset hound with horrible environmental allergies and skin issues who was also highly allergic to fleas. The dermatologist at Louisiana State University, Veterinary Specialists, recommended the Seresto collar. It worked great, and since then I have used the collars on all of my Great Danes – none have ever had any issues with fleas or ticks (and I live in the deep South)! None of my dogs have ever had any bad reaction or negative side effect either.
Laurie Adams Barre
Georgia dog mom, Joyce Culberhouse says:
I looked into all the collars. I didn’t want to do the drops on their back, so I ordered Seresto collars for my 3 little Shih-Tzus. They are flea and tick-free with no side effects.
Vanessa Rosenberg of Connecticut feels:
Seresto is a little expensive but it works best for my 6-year old Dane without any irritations or complications. It’s good for eight months, so it is worth it. I’ve been using Seresto for at least 3 years and so have many of my friends.
Veterinarians Prefer Seresto
I know the Seresto collar works well as long as it is on tightly enough to contact the skin, not just the fur.
Julie Buzby, DVM, CVA, CAVCA, and Founder of Dr. Buzby’s Innovations
Dr. Liz Koskenmaki, Burbank, California shares:
The cheap flea and tick collars (by Hartz, for example), aren’t as effective and contain toxic organophosphides [which are highly toxic and readily absorbed through the skin and lungs.]
Dr. Liz Koskenmaki
Julie Reck, DVM, Veterinary Medical Center of Fort Mill, South Carolina, and Co-Founder of Aspire Vet, says:
I recommend the Seresto Flea & Tick Collar.
Is Seresto Flea & Tick Dog Collar Worth It?
Fleas and ticks carry deadly diseases. It is important though, that you discuss and understand the risks and benefits of any flea and tick preventative with your veterinarian who is familiar with your dog’s health and medical history.
When applying any type of medication, observe your dog for several hours to make sure there are no immediate ill effects and then continue to monitor. Every medication has its risks, and each dog is unique, so it is up to you to stay tuned and react quickly if anything doesn’t seem right with your dog.
Read directions, make sure medications have not expired and that they have been properly stored, and use weight-specific and species-specific doses.
If you take all of this under advisement, the Seresto Flea & Tick Dog Collar does in fact seem worth it for keeping your dog parasite-free.
Although the price point appears high, in most parts of the country, you may only need one collar annually (two at most), while other preventatives you must purchase monthly. Dividing the price over the 6-8 months, the Seresto Flea & Tick Collar is effective, and may actually help you save money or end up costing the same as other options.
Haiku’s and my experience doing this Seresto Flea Collar Review was entirely positive, as are the opinions of pet parents and veterinarians who shared their exclusive thoughts for this Seresto review. Two weeks after beginning this Seresto Dog Collar Review, Haiku remains parasite-free with no ill effects.
No fleas, no ticks, and a healthy dog = happy dog mom!
DENISE FLECK is an award-winning author, animal care instructor and radio show host. She was named one of Pet Age Magazine’s “Women of Influence” for 2018, a “Most Inspiring Story” in 2017 by Voyage Atlanta Magazine and has been nominated for 6 Dog Writers Awards to be announced in early 2019.Read more »