Best Flea Dog Collars 2023

Flea collars are an important tool for protecting dogs against flea infestations. Fleas can cause significant irritation and discomfort for dogs, and in some cases lead to skin infections or anemia from blood loss. A good flea collar provides continuous protection by slowly releasing insecticide onto the dog’s coat to kill adult fleas and prevent further infestations.

There are a variety of flea collar options on the market, using different insecticide ingredients, durations of effectiveness, and sizes to fit dogs of all breeds and ages. With the proper knowledge, dog owners can find the optimal flea collar to safely and effectively control fleas on their pets. This buying guide provides helpful information on the features to look for in an effective, pet-safe flea collar.

Hartz UltraGuard Pro Reflective Flea & Tick Collar

Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs and Puppies, 7 Month Flea and Tick Prevention Per Collar, 1 Count

    The Hartz UltraGuard Pro reflective flea and tick collar provides 7 months of continuous protection for dogs and puppies against fleas, ticks, and flea eggs. It uses a slow-release formula to distribute ingredients evenly over your dog’s fur. The collar is water resistant so it remains effective after exposure to water.

    A key highlight of this product is the reflective technology that makes your dog visible in the dark up to 450 feet when light shines on it. This provides an extra layer of visibility and safety when outdoors at night. The adjustable collar has a buckle that secures it in place and ensures a customized fit.

    Key features:

    • Kills and repels fleas & ticks
    • Prevents flea eggs from hatching
    • Reflective technology for visibility
    • Water resistant
    • 7 months of continuous protection
    • Adjustable and secure fit


    • Provides thorough flea, tick and flea egg protection
    • Reflective technology is a useful safety feature
    • Long-lasting 7-month protection per collar
    • Water resistant so still works after water exposure
    • Adjustable sizing for customized fit


    • Some dogs may be irritated if fitted too tightly
    • May need reapplication sooner with frequent bathing

    Seresto Large Dog Collar

    Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months Protection

      The Seresto large dog flea and tick collar delivers 8 months of continuous pest protection. It is veterinarian recommended and kills fleas within 24 hours of application. The collar repels and kills ticks in as little as 6 hours, eliminating infestations within 48 hours.

      The active ingredients work by distributing through the fur and making contact with pests, so they don’t have to bite to die. The formula is odorless and non-greasy for your dog’s comfort. The collar is also water resistant to swimming, rain, sunlight and bathing.

      Key features:

      • Vet recommended #1 selling flea & tick brand
      • 8 months of continuous protection
      • Kills fleas within 24 hours, ticks within 6 hours
      • Odorless and non-greasy
      • Water resistant formula
      • For dogs over 18 lbs


      • Fast-acting pest protection
      • 8 months of continuous coverage from one collar
      • Vet-recommended top selling brand
      • Odorless and non-greasy for dog comfort
      • Water resistant for continued protection


      • Expensive initial cost
      • Requires proper tight fit for full efficacy

      Seresto Small Dog Collar

      Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Under 18 lbs. | 8 Months Protection

        The Seresto small dog flea and tick collar provides 8 continuous months of pest prevention for dogs under 18 pounds. Like the large dog version, it is veterinarian recommended and uses odorless, non-greasy active ingredients that distribute through fur contact.

        It begins working within 24 hours to kill existing fleas and reinfesting ticks die within 6 hours of contact with the collar. This fast-acting formula eliminates infestations quickly and prevents new ones from developing by killing pests before they can lay eggs.

        The adjustable collar has a water resistant design that withstands swimming, bathing, rain and sunlight exposure. It is designed to make continuous skin contact for optimal effectiveness.

        Key features:

        • 8 months of continuous protection
        • Vet recommended #1 selling brand
        • Kills/repels fleas & ticks fast
        • Odorless, non-greasy
        • For dogs under 18 lbs
        • Water resistant


        • Provides 8 straight months of coverage
        • Vet-backed #1 selling pest collar
        • Starts killing fleas fast within 24 hours
        • Repels and kills ticks within 6 hours
        • Odorless and non-greasy for comfort
        • Water resistant for optimal effectiveness


        • Expensive upfront cost
        • Needs proper tight fit to work best
        • May irritate skin if applied too tightly

        Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies

        Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies - 26" Neck, 7 Month Protection

          The Hartz UltraGuard flea and tick collar delivers 7 months of pest protection for dogs and puppies. Its fresh scent contains active ingredients that both kill and repel fleas and ticks.

          The collar remains effective even when wet, thanks to its water resistant design. It provides coverage for the entire body as ingredients distribute through the fur from neck to tail.

          To use, simply activate the collar by unrolling and stretching it. Then fasten it around your dog’s neck, leaving room for adjustment. Replace the collar every 7 months for continuous protection.

          Key features:

          • Kills and repels fleas & ticks
          • 7 months of protection
          • Fresh scent
          • Water resistant
          • Adjustable fit


          • Provides 7 straight months of coverage
          • Dual action formula to kill and repel pests
          • Works even after getting wet
          • Full body protection from neck to tail
          • Easy to put on and adjust sizing


          • May cause irritation if fitted too tight
          • Needs reapplication every 7 months
          • Strong scent may bother some dogs

          Flea and Tick Collar for Dogs by Nupec

          Flea and Tick Collar for Dogs, 2 Pack Adjustable Waterproof Dog Flea Collar Fits All Dogs 18lbs & Older, 12 Months Protection Safe Natural Ingredient Dog Tick Collar Kills Flea, Tick, Larvae and Lice

            The Nupec flea and tick collar uses natural plant oils to safely repel and kill pests on dogs. It provides 12 months of adjustable, waterproof protection for dogs 18 pounds and over.

            The collar is designed to make continuous contact with the skin to keep pest infestations away. It kills not just adult fleas and ticks but also larvae for thorough prevention.

            This non-toxic pest collar uses ingredients like citronella and lemongrass oil. It fits all size dogs thanks to its adjustable length.

            Key features:

            • 12 months protection
            • Natural plant oil ingredients
            • Kills fleas, ticks and larvae
            • Waterproof & adjustable
            • For dogs 18 pounds and over


            • 1 full year of pest protection
            • Made with natural essential plant oils
            • Kills larvae for thorough prevention
            • Waterproof and adjustable design
            • Safe for dogs thanks to non-toxic formula


            • Limited effectiveness details
            • Strong essential oil scent bothers some dogs
            • Needs proper tight fit to ensure skin contact

            RibRave Flea and Tick Collar for Dogs (2 Pack)

            Flea and Tick Collar for Dog 2 Pack, Prevention and Control of Pests on Dogs, Safe Natural Ingredients Protection, Waterproof, Free Flea Drop and Comb 8 Month

              The RibRave Flea and Tick Collar for Dogs is an effective and safe option for protecting your furry friend from pests. This 2-pack of adjustable collars uses a formula of natural essential oils like citronella, cinnamon, and lemongrass to repel fleas, ticks, and lice for up to 8 months.

              The collars are made of durable PVC material that allows for steady release of the active ingredients over time. Unlike some collars that rely heavily on scent, this one has a light, pleasant aroma at first that fades as the oils are slowly emitted through the plastic. The collar is also waterproof, so its pest prevention powers aren’t diminished if your dog gets wet.

              Key features:

              • Uses plant-based essential oils
              • Waterproof
              • Adjustable size
              • Long-lasting 8-month protection


              • Effective at killing and repelling pests
              • Light fresh scent
              • Safe for dogs
              • Good value for 2 collars


              • Scent fades after initial use
              • Can be strong at first

              ProElobara Flea and Tick Collar for Dogs (4 Pack)

              Flea and Tick Collar for Dogs, Flea Collar for Dogs, Flea Collar, Tick Collar for Dogs, Dog Flea Collar, Flea and Tick Prevention for Dogs, Dog Flea and Tick Collar, Puppy Flea and Tick Collar

                For long-lasting flea and tick protection, the ProElobara Flea and Tick Collar for Dogs is a top contender. This 4-pack provides adjustable collars made with natural essential oils to kill and repel pests for up to 6 months.

                The collars have a subtle, pleasant scent and smooth, flexible feel that won’t irritate most dogs’ skin. And the durable plastic material allows for steady release of the active ingredients over time. The waterproof design means the collar keeps working even if your dog gets wet.

                Key features:

                • 4 collars for over 1 year of protection
                • Natural plant-based oils
                • Waterproof
                • Adjustable size


                • Kills and repels fleas, ticks, and lice
                • Long 6-month protection period
                • Gentle on dog’s skin


                • Scent may be strong initially
                • Not for dogs under 12 weeks

                Hartz UltraGuard Flea & Tick Collar for Dogs

                Hartz UltraGuard Flea & Tick Collar for Dogs and Puppies, 7 Month Flea and Tick Protection and Prevention Per Collar, White, Up to 20 Inch Neck

                  The Hartz UltraGuard Flea & Tick Collar offers an affordable and effective pest control option for your dog. This collar uses tetrachlorvinphos to kill fleas and ticks on contact and prevent hatching of flea eggs for 7 months.

                  The white plastic collar has a fresh scent and reflective stripe for visibility. Its adjustable size fits dogs of all breeds and stages, from puppies to adults. The water-resistant barrier keeps working even after your dog gets wet.

                  Key features:

                  • Kills and repels fleas and ticks
                  • Prevents flea eggs from hatching
                  • 7 months of protection
                  • Adjustable size


                  • Affordable price
                  • Easy to apply and adjust sizing
                  • Water resistant


                  • Strong chemical odor
                  • May cause skin irritation in some dogs

                  Davaon Flea Collar for Dogs (2 Pack)

                  Davaon Dog Flea Collars, Flea Collar for Dogs, 2 Pack Flea and Tick Prevention Collar for Dogs and Puppies, Adjustable One Size Fits All, Free Comb

                    The Davaon Flea Collar for Dogs provides effective and convenient pest protection for your pup. This 2-pack of collars uses natural plant oils like peppermint and clove to kill and repel fleas, ticks, and mosquitoes for 6 months.

                    The collars have an adjustable size to fit small, medium, and large dogs. The formula stays active through steady emission from the durable plastic over time. And the waterproof barrier keeps bugs at bay even if your dog gets wet.

                    Key features:

                    • All-natural essential oil formula
                    • 6 months of protection
                    • Waterproof
                    • Adjustable one-size collar


                    • Kills and repels common pests
                    • Gentle on dog’s skin
                    • Easy to put on and take off
                    • Long-lasting protection


                    • Scent may be strong initially
                    • Doesn’t prevent hatching of flea eggs

                    TevraPet Flea and Tick Collar for Dogs (2 Pack)

                    TevraPet Activate II Flea and Tick Collar for Dogs, 12 Months Prevention, 2 Count, One Size Fits All

                      For cost-effective flea and tick prevention, consider the TevraPet Flea and Tick Collar for Dogs. This 2-pack of bright yellow collars uses deltamethrin and pyriproxyfen to kill ticks and fleas while also preventing flea eggs and larvae from hatching for 12 months.

                      The adjustable plastic collars have a water-resistant barrier to keep working even if your dog swims or plays in the rain. The slow-release technology emits the active ingredients steadily over time to protect your pup.

                      Key features:

                      • 12 months of protection
                      • Prevents hatching of flea eggs
                      • Water resistant
                      • Easy to put on


                      • Long lasting pest protection
                      • Affordable 2-pack
                      • Adjustable size


                      • Strong chemical odor
                      • May irritate some dogs’ skin

                      Buying Guide for Flea Dog Collars

                      Types of Flea Collars

                      There are a few main types of flea collars to consider:

                      Insecticide-impregnated Collars

                      The most common variety uses insecticides impregnated into the collar to kill adult fleas on contact and repel further infestation. These insecticides are gradually released onto the dog’s coat over a period of months. Pyrethroids and organophosphates are common active ingredients.

                      Natural Insecticide Collars

                      These flea collars rely on natural insecticidal essential oils like citronella and lemongrass to repel fleas. They are often a good option for owners looking to avoid synthetic insecticides. However, natural collars typically provide shorter-lasting protection compared to chemical-based options.

                      Ultrasonic Flea Collars

                      Ultrasonic flea collars aim to repel fleas using inaudible high-frequency sound waves. However, there is little evidence that these collars are effective for flea control. Most experts do not recommend ultrasonic collars.

                      Light-Reflecting Collars

                      These collars reflect light to supposedly deter fleas from jumping onto the dog. As with ultrasonic models, there is little data showing these collars reliably prevent flea infestations. They are generally not a substitute for insecticide-based collars.

                      Duration of Effectiveness

                      Flea collars designed to last about 5-8 months provide the most thorough, continuous protection. Shorter-duration collars may need to be replaced more frequently to prevent lapses in flea control. Longer-lasting collars maintain flea prevention but have a higher insecticide content.

                      Water Resistance

                      Since dogs often swim or get baths, the collar should resist water for sustained effectiveness. Look for collars described as water-resistant or waterproof. Avoid flea collars prone to becoming less effective when wet.

                      Adjustable Collars

                      Adjustable collars that can tightened or loosened allow achieving a snug, comfortable fit around the dog’s neck. Proper tightness helps maximize collar contact with the coat. Loose collars may release less insecticide.

                      Size Range

                      There are flea collars sized for dogs from tiny breeds like chihuahuas to large breeds like great danes. Choose the collar with the appropriate size range for your dog based on their neck circumference. Using a correctly sized collar provides safety and optimizes flea control.

                      Safety Considerations

                      Flea collars use insecticides that can cause skin irritation or other health issues at high concentrations. Look for collars made from non-toxic, hypoallergenic materials. Natural ingredients like essential oils have lower toxicity. Review manufacturer safety data to ensure the insecticide concentration is safe for dogs.

                      Age Range

                      Some brands indicate a minimum age for use based on insecticide strength and pet sensitivity. Follow all age guidelines to avoid irritation or toxicity in young puppies. There are collars formulated for dogs as young as 12 weeks old.

                      Veterinarian Recommended

                      Choosing a flea collar approved by veterinarians provides reassurance of the product’s safety and effectiveness. Brands tested and recommended by professionals often perform better than other options. However, vet recommended collars also tend to cost more.


                      Prices vary considerably between cheap generic collars starting around $5 to premium vet-recommended brands running $15-20 or more. In general, pricier collars from proven brands have greater insecticide concentrations for longer-lasting flea prevention. Cheaper collars may save money upfront but require more frequent replacing.

                      Brand Reputation

                      Established flea collar brands with a track record of positive customer experiences and veterinarian trust provide reliable performance. Look for brands with a reputation for quality ingredients, rigorous safety testing, and effective flea control. Avoid no-name products which are more risky.

                      Manufacturer Guarantee

                      Some brands offer satisfaction or money-back guarantees if the collar fails to control fleas as expected. Guarantees allow recouping your investment if the product underperforms.


                      How long does a flea collar last?

                      Most flea collars provide 5-8 months of flea prevention before needing to be replaced. Shorter 3 month collars are available, as well as long-lasting 1 year models. Choosing a longer-lasting collar means less frequent replacing.

                      Are flea collars safe for puppies?

                      Flea collars contain insecticides that may irritate puppies’ sensitive skin. However, many brands now offer collars designed for young dogs. Look for collars approved for puppies as young as 12 weeks/3 months old. Follow all age guidelines.

                      Can flea collars be dangerous?

                      Flea collar insecticides can cause skin reactions or other health problems if proper precautions aren’t taken. Use collars formulated for safety with natural ingredients or low concentrations of synthetic insecticides. Correct sizing and following age guidelines also reduces risk.

                      Do flea collars work for ticks?

                      Most flea collars only repel and kill fleas. Some newer collars combine flea and tick prevention. But tick-specific collars or spot-on liquid treatments work best for protecting dogs against ticks. Flea collars alone aren’t very effective against ticks.

                      How tight should a flea collar be?

                      Flea collars must be snug enough to maintain full contact with the dog’s coat in order to properly release insecticide. But overly tight collars can become uncomfortable. Leave room to fit 2 fingers between the collar and your dog’s neck for a snug but not too tight fit.

                      Can flea collars be washed?

                      Avoid submerging flea collars in water, as this can deactivate the insecticide. However, occasional gentle washing with soap and water is fine. Rinsing off dirt helps maintain effectiveness. Just be sure to thoroughly dry the collar before reusing.

                      How often should flea collars be replaced?

                      Depending on the brand, flea collars work for 3-12 months. 3 month collars offer shorter protection but lower cost. 8 month collars provide the optimal balance of long-lasting control with lower insecticide content. Replace the collar after the listed duration to maintain flea prevention.

                      Are natural flea collars effective?

                      Natural flea collars using plant oils tend to provide shorter-term protection compared to chemical insecticide options. However, natural ingredients are gentler for young or sensitive dogs. Try pairing natural collars with other flea treatments for robust control.

                      What’s the best flea collar for large dogs?

                      Larger dogs generally need longer-lasting, waterproof collars with higher insecticide concentrations. Top brands for big dogs include the Seresto 8 month collar and Hartz Ultraguard Plus Flea & Tick Collar, which provide up to 8 months of water-resistant prevention.

                      What flea collars are vet recommended?

                      Veterinarian recommended flea collar brands include Bayer Seresto, PetArmor Plus, Novartis Scalibor, and Virbac Preventic. These collars are proven safe and meet the insecticide concentration thresholds required for effective flea control. But they tend to be more expensive.


                      From chemical to natural ingredients, adjustable sizing to water resistance, there are many factors to weigh when selecting the right flea collar for your dog. While every dog has individual needs, following the guidance provided in this buying guide will lead you towards a collar well-suited for protecting your pet against problematic flea infestations. A quality flea collar from a reputable brand provides peace of mind knowing your dog will stay happy, healthy, and itch-free.


                      1. – Chewy offers a wide selection of flea and tick dog collars for an easy way to protect your pup from these pesky pests.
                      2. Earth Animal – Nature’s Protection™ Flea & Tick Herbal Collar for Dogs is infused with a natural blend of aromatic herbs and essential oils with a fresh, minty fragrance.
                      3. Top Dog Tips – This website provides a veterinarian’s guide on flea collars for dogs and lists the top 3 flea collars for dogs: Shengkou Flea and Tick Collar, Seresto (Bayer) Imidacloprid/Flumethrin Collars, and Generic Deltamethrin-containing Collars.
                      4. Bio Spot Active Care™ Flea & Tick Collar for Dogs – This collar kills fleas, ticks, flea eggs and larvae for up to 7 months and is easy to apply.
                      5. Pettable – This website provides helpful information on how to choose the best dog flea collar and other helpful pet care information.
                      Articles: 180