5 Best Dog Flea Collars — Guide, FAQ, Reviews, Scalibor & Seresto — Breeding Business (2023)

Dog flea collars are preventative pest-control methods for protecting dogs against ticks, fleas, and other pests. Tick and flea collars have different active compounds (insecticides) with different levels of efficiencies and potential side-effects.

Older dog flea collars have been used less and less because of serious allegations made about their toxicity to dogs, children and even adult humans. Over the last years, many modern and much safer dog flea collars have appeared on the market and they are definitely more efficient.

This article is a comprehensive guide to the best dog flea collars, answering the most common questions and interrogations pet parents have before buying these. Please note that tick and flea collars for dogs are great for prevention, they won’t be of much use to treat an existing spread or infestation. In the recent past, we wrote articles about treating a tick and flea infestation, but also a review on the best dog flea shampoos.

How Ticks & Fleas Operate

Fleas and ticks operate similarly but are in fact vastly different. A flea is a six-legged wingless insect with the capacity to jump up to 50 times its body length. On the other hand, a tick is an eight-legged arachnid that neither flies nor jumps.

Ticks are more resilient in nature and can grow up to 1cm in length. They can survive up to 3 years in temperatures close to freezing. They can also live by feeding off blood from an extensive list of hosts including dogs, birds, snakes, lizards, opossums, humans, cats, foxes, rodents, deer, raccoons and cattle. Although they spend most of their life cycle jumping from host to host, they also possess patience and can lie dormant for long periods of time until a suitable host appears. A female tick will feed on a host until she is round and engorged. She will then detach and lay up to a thousand eggs where she lands; her death will then follow.

Alternatively, fleas, which are approximately 3mm in length, live up to 100 days and prefer warm environments. They have fewer hosts including dogs, coyotes, cats, raccoons, opossums, and foxes. Fleas choose a single host to live on for several weeks until death. They have a strong grip to prevent displacement from the host. Only adult fleas feed on the host, unlike ticks who feed during all phases of life (larvae, nymph or adult) as feeding supports their development. Fleas lay between 20 and 40 eggs on their host daily, after feeding. The host carries eggs in its fur which may fall as it travels, spreading the infestation far and wide.

Fleas have a tendency to spread Cestoda (tapeworm) and bartonellosis whilst ticks transmit potentially fatal diseases such as Rocky Mountain Spotted Fever and Lyme Disease; all of which can affect both dogs and humans.

5 Best Dog Flea Collars — Guide, FAQ, Reviews, Scalibor & Seresto — Breeding Business (2)

How Tick & Flea Collars Work

Flea and tick collars are considered an effective way to prevent fleas and ticks in dogs, especially if your dog does not suffer from any underlying medical conditions. Insecticide and plastic resin are molded together to create a narrow plastic strip that can be worn around a dog’s neck. The insecticides must be tested and deemed non-toxic to avoid poisoning the dog or irritating its skin. The carefully constructed collars are also designed not to stain fur or have any strong taste or odor that may prove distressing to either dog or owner.

Collars come in a standard size (approximately 0.375 inches wide and 0.125 inches thick) that can usually be trimmed by the owner to fit the pet perfectly and the insecticide is embedded in the collar as either a liquid or gas. Flea and tick collars may either emit a gas that is designed to kill fleas when they bite the skin or secrete a liquid that soaks into the dog’s skin, killing fleas and ticks on contact with the skin before they bite. The most successful collars tend to contain a liquid-based insecticide as this can cover a larger surface area.

A flea or tick collar is designed to be worn over a period of 3-12 months and has two functions: to prevent and treat an onset of flea and tick infestation. Some of the most commonly used active ingredients are:

  • Amitraz: a lucrative anti-parasitic drug usually used to prevent fleas and ticks. The acaricide causes insects to enter a frenzied state which is followed by paralysis and eventually death. It can also be used to treat mange in dogs. Amitraz is very effective but can prove harmful to dogs and humans in high doses.
  • Deltamethrin: synthetically derived from natural pesticide Pyrethrin, which was discovered in the extract of chrysanthemum flowers over 100 years ago. It is one of the safest existing insecticides for mammals and humans.
  • Pyriproxyfen: a pyridine-based pesticide that has a sterilizing effect on flea eggs and larvae so that they are unable to mature and reproduce. It has low acute toxicity.
  • Propoxur: a carbonate insecticide which causes fleas and ticks to die within 24 hours of exposure by targeting their nervous system. Although safe for dogs, it is extremely toxic to humans, so owners must always wash their hands immediately after contact with the collar.

Flea and tick collars can be more successful when treating ticks than fleas as ticks tend to be drawn to the face and neck of a dog, which is where the collar sits and where the insecticide is most concentrated. Dog flea collars are more effective at preventing fleas and ticks rather than successfully treating infestations because they are normally too widespread and require a very comprehensive approach to be sorted solely with a collar.

In the same way that humans are building up resistance to commonly used antibiotics, it is thought that ticks and fleas may also become resistant to popular over-the-counter treatments. Consequently, many pet owners are finding it increasingly difficult to completely eradicate infestations from their homes. To stop pests building up increased resistance to an active compound, it is important to rotate the type of flea and tick collar used to ensure that stubborn pests are also exterminated.

Different Types of Flea Collars for Dogs

Flea collars may be produced by different brands but what matters the most is the active ingredients they embed in their formula. For the older generation of pet parents, collars were containing tetrachlorvinphos which has been heavily criticized over the last years for its potentially high toxicity for dogs and humans.

Bayer, Merck, and other popular laboratories have recently come up with newer products and totally safe flea collars for dogs. Their embed cleaner and more targeted active ingredients such as deltamethrin, imidacloprid, and flumethrin.

Tetrachlorvinphos Flea Collars

Experts and governmental entities are now warning against traditional flea collars for dogs because of the risks posed to dogs and their owners. Traditional collars often contain the neurotoxin Tetrachlorvinphos (TCVP) which was first registered as a pesticide in the US in 1966 and has been found to build upon pet fur in dangerous levels. TCVP has been found to cause brain and nervous system defects in dogs and humans. It also has links to cancer and the Environmental Protection Agency has listed Tetrachlorvinphos as a carcinogen.

Children are thought to be particularly vulnerable as they have poorer hygiene levels and are therefore more likely to expose themselves to harmful chemicals such as TCVP contained in flea and tick collars, which may subsequently build up in their system. Children are also less developed, and their bodies are less equipped to rid itself of dangerous chemicals. Although hand washing is reported to help protect against the chemical which may be transferred to the mouth, it can also be absorbed through the skin and can irritate the eyes and skin.

Many symptoms reported after exposure to TCVP consist of salivation, pulmonary edema, blurred vision, nausea, perspiration, and convulsions. There have been similar concerns about the use of Propoxur and Amitraz so pet owners are always advised to check product labels. We recommend to try it out for a few days and thoroughly check your dog’s skin, children, and yourself to see if all is well. Always know the risks of bringing a new dog flea collar into the home. Experts are also beginning to suggest alternatives to chemical collars such as homeopathic repellent sprays or flea and tick collars containing essential oils such as cedarwood or peppermint that can repel up to 500 different insects.

Modern Flea Collars

Modern dog flea and tick collars such as Scalibor and Seresto are much safer alternatives to collars containing TCVP. The two products aforementioned contain Deltamethrin for Scalibor, and Imidacloprid as well as Flumethrin for Seresto. Deltamethrin, as previously mentioned, is a naturally occurring pesticide considered to only pose serious health risks to aquatic life and not to dogs or their owners. Seresto is also considered safe for a domestic life as although it still contains chemicals that can cause some toxicity at extremely high levels, it has very high safety margins. Seresto collars release Imidacloprid and Flumethrin at a constant steady rate, keeping pests at bay whilst ensuring chemical levels stay low enough to be considered safe.

Modern dog flea collars also contain antioxidants to prevent sun damage as well as being water-resistant and the best collars have a breakaway mechanism to prevent choking or strangulation. It is important to note – whichever chemicals a flea or tick collar contains – that although a collar may be safe for dogs and their owner, this does not necessarily mean they are safe for cats to be exposed to and owners should tread with caution and ask for advice from experts if in doubt.

Many modern flea collars have also surpassed traditional flea collars in their ability to spread further than the area around the neck where it sits. Older products tend to release insecticide gas which kills pests around the head and neck but not necessarily at the rear end of the dog, as the toxins may not reach this far. However, newer collars are made in such a way that allows chemicals to be released and replenished continuously, whilst being absorbed and spread by natural oils in the dog’s coat, providing fuller protection. The effectiveness of the treatment will still depend on how well the treatment is absorbed into the dog’s skin which may be affected by multiple factors such as how snuggly the collar fits around the dog’s neck and how often the dog gets wet. Modern flea and tick collars are also likely to contain newer insecticides which fleas and ticks should not yet have built up resistance too, making them more effective.

Top 5 Best Dog Flea Collars

As a dog owner, preventing any tick or flea infestation is crucial but happens to be difficult. Manufacturers are not helping much by presenting a rather confusing offering: spot-on flea treatments, flea shampoo, flea bombs, sprays, and the oldest and most trusted method, tick and flea collars.

Anti-flea collars have sunk in popularity a few years ago because of an allegedly toxic pesticide they all used. Manufacturers have put their R&D departments to work and they discovered many different active ingredients that are totally safer, stronger, more targeted and for some of them, totally natural. Today’s flea collars are a lot better and even last longer (some up to 8 months)!

Below is our shortlist and review of the top 5 best tick and flea collars for dogs.

1. Bayer Seresto

— Absolute Best Tick & Flea Collar For Dogs!

Seresto is by far the most popular and best tick and flea collar for dogs! With over ten thousands of wonderful online reviews on many different websites, it is an online bestseller recommended by so many veterinarians that it’s hard to ignore its efficiency. Bayer Seresto has two very strong active ingredients: 10% of Active ingredients: 4.5% of Imidacloprid and 4.5 % of Flumethrin.

Seresto is non-greasy, odorless, super easy to put on any dog, and even has a quick-release mechanism. By using a single Seresto flea collar, your dog will enjoy 8 full months of excellent protection against fleas, ticks, larvae, lice, and even sarcoptic mange. The greater news is that Seresto can be used on puppies from 7 weeks, unlike other products that only allow pups of at least three months of age.

Many other flea control products only kill fleas and ticks while Seresto collars will also repel these parasites so they stay away from your dog altogether. The collar has a slow release and low concentration that is perfect to kill parasites on contact, without them needing to bite to be dead. It’s overall the best dog flea collar you can buy today and it is totally worth its higher price tag.

2. SALVO Flea and Tick Waterproof Collar

— Best Deltamethrin Dog Collar!

Containing 4% of deltamethrin, this tick and flea collar by the world-renowned Merck Laboratories is one of the most popular products out there. My veterinarian was recommending it and it’s a product that has a great legacy, just like Seresto. With the protection of up to 6 months, this deltamethrin dog collar will get rid of fleas, ticks, deer ticks, and a few more parasites with ease.

This is one of the strongest over-the-counter flea collars for dogs and should therefore not be touched by children and puppies younger than 3 months. Merck itself is asking dog owners to consult with a veterinarian before allowing pregnant dogs, senior dogs, and sick or debilitated dogs, to wear the Scalibor collar. Please note that maximum efficiency will be reached three weeks after this tick collar is worn by your dog.

Being one of the priciest anti-flea collars on the market, a lot of pet parents choose to only use this collar once a year for six months and rotate with another product. That way, parasites aren’t able to build up greater resistance over time.

3. ROLF 3D Flea and Tick Collar for Dogs

— Great Instant Knockdown Effect!

By killing fleas, ticks, larvae, and lice before they bite, the Rolf 3D Anti-Flea Collar is a very strong product basing its formula on a powerful trio of ingredients: Fipronil, D-cifenotrin, and Pyriproxyfen. It is not the cheapest tick collar out there but it will last for six months at very high efficiency. Because of its strength, it is not allowed to use this flea collar on puppies younger than 12 weeks.

This dog flea collar by Rolf 3D is combating mosquitos, lice, fleas, and ticks, as well as preventing heartworm from sneaking in your dog. It also gets rid of larvae and therefore provides protection against all stages of such pests. Obviously adaptable, it comes in three different sizes: for small dogs (weight of 0-22lbs), medium dogs (22-65 lbs), or big dogs (over 65 lbs).

Since this tick and flea control device is rather strong, check your dog’s skin out after a few hours and days of use to make sure there is no undesirable reaction. Review tend to be raving so do not worry too much, but just take some precautions!

4. Hartz UltraGuard Pro Reflecting Dog Flea Collar

— Best Full Body Flea Protection Collar

Effective over eight months, this flea and tick control protects dogs and puppies aged seven months and over. Its main active ingredients are very much natural and known for their anti-pest properties. There is also a total of six ingredients which is reassuring as many of them are essential oils rather than chemical-based compounds: cinnamon oil, eucalyptus oil, lemon eucalyptus, lavender oil, linaloe, and polyethylene.

Because of its lack of strong pesticide, it is a gentler natural anti-pest collar for dogs, and wouldn’t be recommended for very active outdoors dogs. Ideally, this is a perfect flea collar for very young dogs and indoor family pets. It is made by Hartz and the manufacturer defines its flea collar as hypoallergenic and free of any toxic chemicals.

5. SOBAKEN Flea and Tick Prevention Collar

— Best Organic Botanical Flea Collar For Indoor Dogs!

Efficient over four months, this non-toxic botanical dog flea collar is available in different sizes. Its active ingredients are strong essential oils proven to fight off fleas, ticks, and larvae on home pets. Essential oil flea and tick collars may not be common but they are efficient. Arava’s collar embeds lemongrass, eucalyptus, peppermint, clove, cinnamon, and thyme – all known for their efficiency!

Arava flea-control collar is engaged in a continuous fight against ticks, fleas, larvae, lice, and even mosquitos. It is totally safe for your dog’s skin and has a long-lasting waterproof design. You can easily adjust it thanks to its smart design.

Because dogs are all unique and sometimes a pet may react differently than the next, feel free to use the 100% satisfaction guarantee offered by the manufacturer. That way, you may try the product without risking too much besides sending it back and getting a quick refund. This is not the strongest product so we would recommend it for small and indoor dogs mainly. This product is available on Amazon and received great reviews from holistic dog owners.

Dog Flea Collars – FAQ

Over the years, we’ve received loads of emails from our audience about interrogations and worries they have about dog flea collars. We wanted to answer them publicly to the best of our current knowledge with the science and data available at the time of writing.

Are flea and tick collars for dogs safe?

Yes, flea and tick collars are safe for dogs if the right precautions are taken. Modern flea collars such as Seresto and Salibor are recommended by experts because they emit safe levels of insecticides for dogs and their owners. However, there is no one size fits all approach and although flea and tick collars may be safe for dogs as they can sometimes pose risks to children or other pets.

Certain chemicals are also more toxic than others. Organophosphates such as Tetrachlorvinphos appear in a lot of traditional older flea-control collars and have been listed by the US Environmental Protection Agency as toxic to wildlife and humans. Owners should always check labels, act responsibly and consult an expert if in doubt. Some dog collars are not appropriate for pregnant or sick dogs or those under 8 weeks old. It is also important to consider whether a dog collar may be suitable for your dog if you two or more dogs in the house as almost all insecticides could prove harmful if they are ingested by a dog who bites or chews another dog’s collar.

Are flea and tick collars effective for dogs?

Yes, generally flea and tick collars are effective as a preventative measure but not for treating infestations. In giant dog breeds, some products may be more effective around the head and neck of the dog where the collar is worn and less effective towards the rear of the dog where the chemicals are less concentrated.

If fleas or ticks have already nested or laid eggs in your dog’s fur, there is no guarantee that a flea or tick collar will completely eradicate the pests. Most collars also have a time frame within which the collar must be applied for optimum success, for example, Seresto should be worn 48 hours before a dog is exposed to ticks which means prevention may not be fully achieved once an infestation has begun.

Flea and tick collars are particularly effective in the prevention of fleas and ticks if a dog spends a large amount of time outdoors. This is where the risk of infestation is most prevalent. Flea collars have also become more durable. Nowadays, most of them boast water and sun resistance in order to improve and maintain their effectiveness in all conditions over longer periods of time.

[pullquote-right]Flea and tick collars are effective as a preventative measure but not for treating infestations.[/pullquote-right]

Many dog owners who have been suffering from an infestation in the home can also put a flea and tick collar inside the vacuum cleaner bag so that fleas, ticks or eggs that are hoovered up will be killed, preventing further spread or reinfection. For a severe infestation in the home, dog owners may need to seek external assistance from pest control.

When should a dog flea collar be changed?

This is usually dependent on the product purchased and can vary so it is important to always read labels fully. Most collars can be worn from between 3 and 12 months before they must be replaced.

However, it should be noted that if a dog spends a large amount of time in water (either swimming or being bathed), then this may cut the lifespan of the collar in half as it may decrease in effectiveness and the collar may have to be replaced sooner. If you are treating your dog with other flea and tick medication the collar may need to be removed as to ensure that you are not exposing your dog to prolonged periods of high dose medication. Collars that have a lifespan of several months can be taken off and stored in an airtight container until they are next needed.

Pest-control collars for dogs should always be changed if they become visibly damaged or chewed as this may compromise their effectiveness. The flea or tick collar should also be removed if it becomes apparent that it is in some way causing distress to harm to your dog or your family.

Do dog flea and tick collars cause cancer?

There are certain insecticides used in dog flea and tick collars such as tetrachlorvinphos and proximur that have been thought to cause cancer in dogs and humans, although there is insufficient evidence to confirm this. Flea and tick collars often leave a residue that builds up in homes and pets and gets absorbed into our skin and ingested via our mouths. Unsafe levels of these toxins can build up in the body and may have harmful effects.

Modern flea collars now have higher safety margins and tend to use safer, naturally occurring insecticides such as deltamethrin. Some are even homeopathic and rely on a blend of essential oils such as lemongrass and peppermint for their effectiveness. However, even homeopathic dog and flea collars can cause allergic reactions in dogs and humans and should be used with care.

Can a dog flea and tick collar kill a cat?

Yes, dog flea and tick collars can be lethal for cats. Cats and dogs are physiologically different, so they will be affected differently by different products – some insecticides which are harmless for dogs are lethal for cats, such as Permethrin. Unless a product has been specifically formulated for both species, it should never be used on both dogs and cats. If you are ever in doubt speak to an expert.

If you own both a cat and a dog, it is also crucial to ensure that the product you use on your dog will not have a harmful secondary impact on your cat. Although they are not wearing the collar, the chemicals emitted by your dog’s collar could still prove lethal if encountered by your cat.

It is also important to consider that cats and dogs also behave differently (i.e. cats climb higher and are more independent), so they are more likely to climb a tree or jump from a great height and get caught, increasing their risk of strangulation. Therefore, cat collars may be fitted with a more effective breakaway mechanism for this reason and this should be considered when choosing a tick or flea collar for a cat.

5 Best Dog Flea Collars — Guide, FAQ, Reviews, Scalibor & Seresto — Breeding Business (8)

Can I use a dog flea and tick collar on a puppy?

Dog flea and tick collars are generally not recommended for puppies. As puppies are much smaller than the average dog, the dosage may be toxic, causing irritation or illness. Puppies are also much more playful and may be more likely to bite one another’s collar when playing roughly or chew one another’s collar off causing a potential digestive obstruction.

Again, a mouthful of these toxic chemicals may be very dangerous for a small puppy. Veterinarians do not recommend getting a tick or flea collar for your dog until they are at least 8 weeks old even though some products claim to be safe for all breeds and ages. Before using any flea or tick treatment on a young puppy, it is always best to consult an expert.


Is there a lawsuit against Seresto? ›

In March 2021, USA Today announced two pet owners filed a class-action lawsuit against Elanco Animal Health, a pet pharmaceutical company owning rights to the Seresto flea and tick collar for cats and dogs. Pet owners claimed Elanco falsified the safety of this animal “protective” product.

How long does it take for Scalibor collar to work? ›

Scalibor Protector Collar for dogs

The active ingredient in this collar against ticks is deltamethrine, an insecticide that acts like a strong neurotoxine on the parasites. It is also found in pesticides. The effect unfolds after one to two weeks of wearing.

What are the side effects of Seresto flea collar? ›

There are recorded events of pets and/or people having adverse reactions to Seresto collars, these are usually mild skin irritations and resolve with the removal of the collar.

Is Seresto worth the money? ›

It is the most recommended dog dog flea treatment and tick collar by veterinarians. Also, it is the most purchased dog flea and tick collar brand on the market today. Those who have used it were especially pleased by its long-lasting flea and tick control.

Does Seresto go into bloodstream? ›

Seresto contains the active ingredients imidacloprid and flumethrin. These are topical active ingredients – which means they are not absorbed into the bloodstream of your pet but they are instead bound to the lipid (fat) layer of your pet's skin and are also present in their coat.

Did the EPA cancel Seresto flea collars? ›

On April 8, 2021, the Center for Biological Diversity (CBD) submitted a petition requesting that the agency cancel the registration of the Seresto collar. CBD has requested the agency to suspend the registration pending cancellation.

How long does Scalibor last? ›

The small collar contains 0.76g of deltamethrin and the large collar contains 1.0g of deltamethrin. Please measure your dog's neck before purchasing the collar to ensure an accurate fit. The collar itself is white and odourless. Scalibor Collars provide up to 6 months protection from ticks.

How long does it take for a Seresto collar to start working? ›

Seresto® kills existing fleas within 24 hours of applying the collar. New adult fleas are killed within 2 hours for the next 8 months.

How long do Scalibor collars last? ›

Scalibor Dog Collar. Scalibor Dog Flea Collar controls the infestations of pests - ticks, mosquitoes and flies for up to 6 months.

What's the safest flea treatment for dogs? ›

Types of Safe Flea Treatments for Dogs
  • Frontline Plus is an OTC product that uses fipronil and (S)-methoprene to attack fleas and ticks at every life stage. ...
  • Trifexis employs spinosad and milbemycin oxime to keep dogs protected from heartworms and intestinal parasites as well as fleas, but it does not work against ticks.
Jun 27, 2019

What is the safest flea collar for dogs? ›

What are the best flea collars for dogs?
  1. Seresto Flea & Tick Collar for Dogs. ...
  2. Adams Flea & Tick Collar Plus for Dogs & Puppies. ...
  3. Hartz UltraGuard Plus Flea & Tick Collar for Dogs. ...
  4. Vet's Best Flea and Tick Repellent Collar for Dogs with Certified Natural Oils. ...
  5. TevraPet Activate II Flea Collar for Dogs.
Jul 7, 2022

How long does Seresto stay in dog's system? ›

The collar's innovative technology gradually releases controlled doses of the active ingredients over a long period of time. The ingredients are transferred to your pet's skin and coat and spread across their entire body surface, keeping them protected from fleas and ticks for 7-8 months.

What should I use instead of Seresto? ›

5 Natural Alternatives to Seresto Flea and Tick Collars
  • 1 – Essential Oils. I love essential oils. ...
  • 2 – Kin+Kind Flea & Tick Dog and Cat Spray. ...
  • 3 – CocoTherapy Coconut Oil. ...
  • 4 – Cedarcide Topical Flea & Tick Spray. ...
  • 5 – Wondercide Topical & Indoor Flea & Tick Spray.
Mar 18, 2021

Can you take the Seresto collar off at night? ›

Your dog can most certainly be protected from fleas & ticks by using the Seresto collar all of the time, except while they are in our care. All we ask is that you take it off in your car in the morning and put it back on when you pick them up at night or at the end of their stay.

Is advantage better than Seresto? ›

If you have a breeding, pregnant, or lactating dog, you'll want to use Seresto to allow for safe protection. If your dog isn't already taking a heartworm preventative, Advantage II offers that benefit. If ticks, sarcoptic mange, and chewing lice are a concern for you and your dog, Seresto may be the best choice.

Can Seresto cause seizures? ›

There is no evidence that either active ingredient (imidacloprid and flumethrin) cause seizures or other health issues in dogs.

Is Frontline better than Seresto? ›

Both kill fleas and ticks, but Seresto repels ticks as well. Frontline Plus protects against mosquitoes, Seresto does not. Seresto is designed to last 8 months with one collar, Frontline Plus is 1 month per application. Seresto ends up being slightly cheaper per month, depending on how/where you purchase it from.

Why is my dog acting weird after flea collar? ›

The most common reason is that the fleas are being killed and the dog is no longer being bitten by them. This can cause the dog to feel itchy and uncomfortable, which may lead to restlessness. Additionally, the chemicals in some flea treatments can be irritating to dogs, leading to discomfort and restlessness.

Can Seresto collar make dogs sick? ›

If any other stomach issues (vomiting or diarrhea) develop, remove the collar and see if the symptoms resolve over the next few days. They may be in that small subset with a sensitivity to the medication (and it's best to avoid other topical drops for this reason).

Does Seresto protect against Lyme disease? ›

Seresto was proven to be 100% effective in protecting dogs from ticks infected with Lyme disease and Anaplasma both early and late into its 8-month treatment period.

Does Seresto prevent ear mites? ›

This versatile topical product has the widest range of protection of both internal and external parasites. In both cats and dogs, all 3 stages of the flea life cycle are effectively controlled,in addition to ear mites.

What is the active ingredient in Scalibor collar? ›

The technology releases the active ingredient, deltamethrin, over time on to your dog's skin giving her full-body protection for up to six months.

Are Scalibor collars waterproof? ›

The Scalibor collar works for 5 to 6 months. The collar is active against ticks, sand flies and heartworm mosquitoes. The Scalibor collar is waterproof and odorless.

Do flea collars keep mosquitoes away? ›

There is no evidence that wearing pet flea and tick collars in any manner will prevent bites from sand flies, mosquitoes, fleas, or ticks.

Do you have to wash your hands after touching a Seresto collar? ›

The manufacturer states to wash your your hands in COLD water after touching the collars or a dog wearing one. Don't use warm or hot water. It's the same principle as when you touch onions and garlic then wash your hands in warm water; they still smell like onions and garlic.

Are Seresto collars safe now? ›

“In the medical opinion of our boarded veterinary toxicology experts these collars are a safe and important treatment for the vast majority of cats and dogs.

Should I bathe my dog before using Seresto collar? ›

Answer: You do not have to bathe your dog before applying the Seresto Dog Flea and Tick Collar. It is recommended not to bathe the dog more than once a month while the collar is worn. 37 of 47 people found this answer helpful.

How long do Seresto collars last if not opened? ›

A: There is no expiration date on the Seresto collars. The EPA does not require an expiration date because the product has been proven to have a long shelf life. Seresto has been tested for a 5 year shelf life as long as it is unopened. Once the product package is opened, the shelf life is 8 months.

Should I take my dogs flea collar off at night? ›

All veterinarians and dog trainers would agree that the collar is not designed to be a 24/7 accessory. Another good reason to remove it at night is nonstop wear could cause fur to break off leading to irritation or infection.

Are Seresto collars 100% effective? ›

Based on geometric mean counts, the Seresto® collar was 93% effective on Day 30, and 97–100% thereafter.

What kills fleas immediately on dogs? ›

The most common product used to kill fleas on dogs instantly is Nitenpyram, more commonly known as Capstar. This single-use tablet is administered orally and kills fleas within 30 minutes. It is recommended that you contain your pet in a small area when using Capstar.

What is the number 1 flea treatment for dogs? ›

Frontline Plus is our top nonprescription recommendation because it kills ticks and fleas, controls flea infestations, and kills chewing lice, all with one easy application. When used primarily for flea control, each dose of Frontline Plus lasts up to three months.

What kills fleas on dogs instantly naturally? ›

Apple Cider Vinegar

Apple cider vinegar's slightly acidic pH level creates an inhospitable environment for fleas. Mix six cups of ACV with four cups of water (use a 6:4 ratio), add a pinch of salt, and spray the mixture on your dog's coat and underbelly, making sure to avoid their eyes and any wounds they may have.

Can fleas live in human hair? ›

First, is it possible for fleas to live in human hair? The short answer is no. There are more than 2000 types of fleas around the globe. However, there is no evidence that these insects can live on the human body or scalp.

Can dogs sleep with flea collars? ›

It is safe to allow pets to sleep in bed with you while wearing this collar. The active ingredients spread from the site of direct contact over the skin surface, so it is not recommended to continuously touch the collar. 96.

Which is better flea collar or drops for dogs? ›

Drops: Which One Is Best? Flea collars and drops are both effective options for eliminating fleas. The best treatment is one that works for both you and your dog.

Do ticks fall off with Seresto? ›

Ticks will still climb onto your cat's coat but the repellent effect of Seresto prevents them from feeding. After coming in contact with your cat's fur, the ticks will usually die and drop off.

Is Seresto or Nexgard better? ›

Nexgard uses Afoxoflaner and kills 100% of fleas and ticks in 24 hours. Seresto uses Flumethrin and Imidacloprid and begins to kill fleas in 24 hours and repels or kills re-infesting ticks within six hours. Nexgard is the only FDA approved option for preventing infections that cause Lyme disease.

Is Advantix or Seresto better? ›

If your dog is pregnant, breeding, or lactating, K9 Advantix II is the safest choice. If your dog would benefit from protection against biting flies and mosquitoes, you might lean toward that K9 Advantix II. If sarcoptic mange is a concern, Seresto is a great treatment option.

What are the side effects of a Seresto collar? ›

There are recorded events of pets and/or people having adverse reactions to Seresto collars, these are usually mild skin irritations and resolve with the removal of the collar.

How tight does a Seresto collar need to be? ›

According to the product manual, the Seresto collar should be tightened firmly enough so that the loose end of the collar pulls through the clasp at the end, and you should be able to fit two fingers between the collar and neck.

Do you have to activate a Seresto flea collar? ›

No, you are not required to stretch the collar to activate it. It automatically releases chemicals and within 48 hours of its administration, eliminates all the existing fleas and ticks on a dog.

Is Seresto better than Trifexis? ›

Some pet owners and their veterinarians may decide to switch over to Seresto to protect breeding, pregnant, and lactating dogs. For protection against internal parasites, Trifexis is a great choice. If sarcoptic mange, chewing lice, and ticks are the primary concern, Seresto might be the best option.

Does Seresto prevent heartworm? ›

A: Seresto collars do not prevent heartworms.

Do flea collars work if they already have fleas? ›

Flea collars, no matter the brand, do not prevent fleas from jumping on your dog. It is virtually impossible to stop that attack from happening. But once they get on your pet, then the collar can kill them within 24 hours.

How safe is Seresto for dogs? ›

“Our data has really shown that the collars are not associated with severe adverse events.” Dr. Brutlag noted that the active ingredients in Seresto collars—imidacloprid and flumethrin—are widely used and based on experience, have “a pretty wide and favorable safety profile for the collars.”

What is safest flea and tick treatment for dogs? ›

Under many circumstances, newer dog flea collars are safe options for flea and tick control (unlike older collars, which were largely ineffective). The Seresto collar is a very popular option right now. It uses flumethrin and imidacloprid to kill fleas at multiple stages of development as well as ticks.

Can seizures be caused by Seresto collar? ›

There is no evidence that either active ingredient (imidacloprid and flumethrin) cause seizures or other health issues in dogs.

How long till Seresto kills fleas? ›

In dogs and cats, Seresto® kills and repels fleas. After applying the collar, Seresto® kills fleas already on your pet's body within 24 hours. If your pet continuously wears the Seresto® collar over the next 8 months, any new fleas that land on your pet will be killed within 2 hours.

Why does my dog still have fleas with Seresto collar? ›

Your pet isn't wearing their collar continuously

It is these active ingredients that kill fleas and ticks when they make contact with your pet's skin and hair. If the collar is removed, it is not able to continuously release its active ingredients onto the skin and hair and your pet will not be protected.

What is the best vet recommended flea treatment for dogs? ›

Best Flea Treatments for Dogs and Cats
  • Finding the right treatment. ...
  • Frontline® Flea Spray for Dogs and Cats. ...
  • Frontline® Plus for Dogs and Cats. ...
  • Seresto™ Flea and Tick Collar for Dogs and Cats. ...
  • Capstar® Flea Control for Dogs and Cats. ...
  • Advantage® II for Dogs and Cats. ...
  • Sentry Fiproguard for Cats. ...
  • Effix for Dogs.

Does Seresto cause neurological issues? ›

It's not common knowledge which of the ingredients in the Seresto collar is causing pets to die, but the reports of neurological symptoms in dogs wearing the collar fits with the mode of action of either of these insecticides, which damage the nervous system.

Why is my dog acting weird after Seresto? ›

The most common reason is that the fleas are being killed and the dog is no longer being bitten by them. This can cause the dog to feel itchy and uncomfortable, which may lead to restlessness. Additionally, the chemicals in some flea treatments can be irritating to dogs, leading to discomfort and restlessness.

Can Seresto collars cause stomach issues? ›

If any other stomach issues (vomiting or diarrhea) develop, remove the collar and see if the symptoms resolve over the next few days. They may be in that small subset with a sensitivity to the medication (and it's best to avoid other topical drops for this reason).

Can I remove my dogs Seresto collar off at night? ›

Your dog can most certainly be protected from fleas & ticks by using the Seresto collar all of the time, except while they are in our care. All we ask is that you take it off in your car in the morning and put it back on when you pick them up at night or at the end of their stay.


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