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10 Best Flea Treatments for Kittens 2021 – Reviews & Top Picks

Treatment of a cat from ticks_Anastasiya Tsiasemnikava_shutterstockBringing your fluffy and adorable new kitten home is an incredibly exciting time. But you want to make sure that kitten doesn’t come with any unexpected visitors, like a load of fleas, for example! Choosing an effective and fast-acting flea treatment is an essential part of caring for your new kitten.

If you already know how much they weigh, you can go right ahead and select one of the flea treatments on this list.

Our reviews are designed to help you pinpoint which flea treatment is going to suit your kitten best. So, whether you’re looking for a spot-on treatment to use as soon as you bring your kitten home at around 12 weeks or a long-lasting solution for older kittens, we’ve got you covered.

Cat ball divider 1A Quick Comparison of Our Favorites

Image Product Details
Best Overall
Winner
Frontline Plus Cat & Kitten Flea and Tick Treatment Frontline Plus Cat & Kitten Flea and Tick Treatment
  • Waterproof
  • Lasts for 30 days
  • Kills fleas, lice, and ticks
  • Best Value
    Second place
    PetArmor Flea & Tick Squeeze-On Treatment PetArmor Flea & Tick Squeeze-On Treatment
  • Easy to apply
  • Lasts 4-6 weeks
  • Great value for money
  • Premium Choice
    Third place
    Zoetis Revolution Topical Solution Flea Treatment Zoetis Revolution Topical Solution Flea Treatment
  • Non-greasy formula
  • Suitable for kittens from 8 weeks of age
  • Protects against heartworm, roundworm, hookworms, and ear mites
  • Onguard Flea & Tick Treatment Onguard Flea & Tick Treatment
  • Made in the U.S.A.
  • Kills fleas and ticks
  • Available in packs of three or six treatments
  • Bayer Advantage II Flea Treatment Bayer Advantage II Flea Treatment
  • Veterinarian recommended
  • Contains two active ingredients
  • Kills all life stages of fleas on contact
  • The 10 Best Flea Treatments for Kittens — Reviews 2021

    1. Frontline Plus Cat/Kitten Flea Treatment — Best Overall1Frontline Plus Flea & Tick

    If you’re looking for the best flea treatment on the market today, you simply can’t beat Frontline Plus Cat & Kitten Flea and Tick Treatment. This long-lasting treatment remains active for 30 days after application and gets to work straight away to kill fleas and their eggs and larvae.

    It’s also waterproof, so if your cat happens to need a bath, you don’t need to worry about this losing its efficacy. It’s suitable for cats and kittens over 8 weeks of age or weighing over 1.5 pounds. As well as killing fleas, this treatment also kills lice and ticks that can be vectors for Lyme disease.

    Pros
    • Lasts for 30 days
    • Waterproof
    • Kills fleas, lice, and ticks
    • 6 months’ worth of treatments
    Cons
    • Expensive

    2. PetArmor Flea & Tick Squeeze-On Treatment — Best Value2PetArmor Flea & Tick

    Our recommendation as the best flea treatment for kittens for the money is the PetArmor Flea & Tick Squeeze-On Treatment. Suitable for kittens over 8 weeks of age and 1.5 pounds in weight, this treatment is easy to use and gets to work killing those fleas straight away. While this is a great flea treatment, it missed out on our top spot because it only acts to kill adult fleas, not the eggs or larvae.

    This spot-on treatment also kills ticks and lice within 72 hours of application. It’s waterproof, so it’s a good choice for cats who may have allergies and need a bath. This pack comes with three pipettes, equaling a 3-month supply.

    Pros
    • Great value for money
    • Easy to apply
    • Lasts 4-6 weeks
    Cons
    • Only kills adult fleas

    3. Revolution Topical Flea Treatment — Premium Choice3Revolution Topical Solution

    If you’re looking for a premium choice for your kitten, then the Zoetis Revolution Topical Solution Flea Treatment is our recommendation. This kills adult fleas and prevents eggs from hatching, but it doesn’t affect the flea larvae, so you may need a few treatment cycles before you notice that all the fleas have gone.

    Because this topical solution acts on heartworms, as well as fleas, you’ll need a prescription from your veterinarian. This is simple, and all you need to do when ordering is to add the contact details for your vet, so the order can be verified with them.

    Pros
    • Suitable for kittens from 8 weeks of age
    • Non-greasy formula
    • Also protects against heartworm, roundworm, hookworms, and ear mites
    Cons
    • Requires veterinary prescription
    • Doesn’t act on flea larvae

    4. Onguard Flea & Tick Treatment4Onguard Plus Flea & Tick

    Onguard Flea & Tick Treatment kills fleas, flea eggs, and larvae, as well as chewing lice. This spot-on treatment can be used on kittens over 8 weeks of age, as long as they weigh more than 1.5 pounds. It contains two active ingredients designed to stop flea infestation while preventing future infestations.

    This remains active for 30 days and is also waterproof, just in case your cat gets caught in the rain or needs a bath! You can choose from two different pack sizes: three or six treatments. The easy-to-use applicator has been redesigned and helps make sure that every drop of this treatment comes into contact with your cat’s skin.

    Pros
    • Available in packs of three or six treatments
    • Kills fleas and ticks
    • Made in the U.S.A.
    Cons
    • Expensive
    • Some cats can have a reaction

    5. Bayer Advantage II Flea Treatment5Advantage II Flea Treatment

    The Bayer Advantage II Flea Treatment has been specifically designed for kittens weighing between 2-5 pounds. This spot-on treatment contains two active ingredients designed to work together in order to kill all life stages of fleas. This pack includes two pipettes, each of which protects for up to 30 days.

    This treatment is waterproof after 24 hours, so your kitten can have a bath if necessary, without you worrying that the treatment will stop working. Be sure to weigh your kitten carefully before use, as this is only designed for use in kittens who weigh over 2 pounds.

    Pros
    • Veterinarian recommended
    • Kills all life stages of fleas on contact
    • Contains two active ingredients
    Cons
    • Not as effective as some other flea treatments
    • Not suitable for kittens under 2 pounds

    6. Sentry PurrScriptions Plus Flea & Tick Squeeze-On Treatment6Sentry PurrScriptions Plus Flea & Tick

    The Sentry PurrScriptions Plus Flea & Tick Squeeze-On Treatment provides five-way protection from fleas, flea eggs, flea larvae, deer ticks, and mosquitoes. If you live in an area with West Nile Virus, then this is a great option as it’s effective on mosquitoes carrying West Nile.

    Unlike most treatments, this spot-on shouldn’t be used on kittens under 3 months of age. So while it is an effective option, you’ll have to wait a little longer before you can use it on your tiny fur-baby.

    Pros
    • Quick-drying formula
    • Effective for 1 month
    Cons
    • Only suitable for kittens over 5 pounds
    • Not for kittens under 12 weeks of age

    7. Catego Flea & Tick Treatment7Catego Flea & Tick

    The Catego Flea and Tick treatment can be used on kittens over 1.5 pounds and at least 8 weeks of age. The topical, spot-on formula quickly gets to work and kills fleas in just 6 hours. It’s also effective against flea eggs, flea larvae, ticks, and lice. The patented applicator is designed to penetrate under your cat’s coat, so this treatment can be applied directly to your cat’s skin.

    This is good value for money, and you can also buy this in a pack of one single treatment, which brings the cost down. This spot-on solution is quick-drying and non-greasy, but we can’t see any information from the manufacturer as to whether it’s waterproof after it’s been allowed to dry.

    Pros
    • Choose from one, three, or six treatments per box
    • Suitable for kittens over 1.5 pounds
    Cons
    • Not as long-lasting as some treatments
    • Some cats can have irritation at the application site

    8. Capstar Flea Tablets8Capstar Flea Tablets

    If your cat has sensitive skin and reacts to spot-on topical flea treatments, these Capstar Flea Tablets might be the answer. Of course, some cats can be a challenge to give tablets to! These tablets start working in just 30 minutes and are proven to be 90% effective at eliminating adult fleas in a matter of hours.

    They’re suitable for kittens weighing 2 pounds and upward, so make sure you weigh your kitten beforehand to make sure they’re above that weight limit. These tablets can be given once a day if your cat has a serious infestation, and as they only kill adult fleas, you may need to treat your cat repeatedly until all the fleas have reached the adult stage of their life cycle.

    Pros
    • Effective alternative to spot-on treatments
    • Begins working within 30 minutes
    Cons
    • Expensive
    • Only effective against adult fleas
    • Some cats don’t like tablets

    9. Bravecto Topical Solution9Bravecto Topical Solution

    If you’re looking for a long-lasting option for older kittens, this Bravecto Topical Solution is an excellent choice. It works for 12 weeks against fleas, meaning you can forget about those monthly spot-on reminders for a little longer. It doesn’t seem to be effective for 12 weeks when applied to kittens under 6 months of age, though, so if you do want to use this, we recommend waiting until your kitten is at least that age.

    Bravecto is effective, but there have been reports of cats developing neurologic abnormalities after use. As you need authorization from your vet to order this product, we highly recommend speaking to them about whether this is a good option for your kitten.

    Pros
    • Suitable for kittens from 2.6 to 6.2 pounds
    • Lasts for up to 12 weeks
    Cons
    • Most effective on kittens over 6 months old
    • Requires prescription authorization from your vet
    • Expensive
    • Reports of cats developing neurologic abnormalities

    10. Activyl Flea Treatment10Activyl Flea Treatment

    Activyl Flea Treatment is a once-a-month spot-on treatment for kittens from 8 weeks of age that weigh over 2.9 pounds. You can choose from a pack of three or six treatments. This spot-on treatment is said to eliminate 90% of fleas within the first 12 hours after it’s been applied.

    This is only effective against adult fleas, as far as we can tell. That means you’ll need to continue treatments while any remaining eggs and larvae develop into adult fleas. This also leaves an oily residue, which may take quite some time to dissipate.

    Pros
    • Water resistant
    • Good value for money
    Cons
    • Leaves an oily residue
    • Takes a while to start working
    • Only works on adult fleas
    • Not as effective as some other treatments

    Buyer’s Guide

    Flea treatments have come a long way in terms of effectiveness, but how do you know what will suit your kitten best? We go over commonly asked questions to help you find the perfect solution for your new kitten.

    Fleas can cause all sorts of problems for cats, including allergy dermatitis and bacterial infections, but they’re particularly nasty for kittens. Due to their small size, kittens are sensitive to anemia. So, if they lose too much blood from flea bites, their tiny bodies aren’t able to cope as well as those of adult cats. Kittens also don’t have a fully developed immune system, so they can be more susceptible to bacterial infections.

    Before you choose any flea treatment, we recommend discussing your preferred option with your veterinarian to make sure it’s a good match for your kitten.

    Here are the main things to consider when choosing a flea treatment:
    • Application method. The most common flea treatments are topical spot-on solutions, tablets, and powders. Topical spot-on solutions definitely lead the way in terms of effectiveness, but they can be accidentally ingested and some leave an oily residue. Tablets are also a good option if your kitten has sensitive skin, but they usually need to be given more often. Powders are a good short-term option but need frequent reapplication.
    • Application frequency. Make sure to find out how long your chosen treatment lasts, and then make a note to re-apply when this coverage is coming to an end. Many spot-on treatments are effective for around 30 days, but some aren’t waterproof, so if your cat comes into contact with water, you’ll need to re-apply. The frequency that you can give tablets varies, so make sure to read the label for each product.
    • Section of flea life-cycle targeted. Some flea treatments only act on adult fleas, meaning that as the eggs and larvae start to develop, your cat will still have fleas on their body, and you’ll need to re-apply the treatment again. Other flea treatments target all life stages of the flea and are more effective at quickly dealing with an infestation.
    • Using a flea treatment designed for adult cats on a kitten can lead to a dangerous buildup of the product. Always select a flea treatment designed for kittens, and check that your kitten’s age and weight both match the recommended details on the packaging. Some flea treatments are suitable for kittens from 8 weeks of age, when they’re usually still with their mother cats. Others are only suitable for kittens from 12 weeks of age. Signs of an overdose of flea treatment include excessive salivation, diarrhea, vomiting, muscle tremors, twitching, in-coordination, and depression. If your kitten is showing signs of any of these symptoms after their flea treatment, speak to your veterinarian immediately.

    cat paw dividerConclusion

    Taking the spot for the best overall flea treatment for kittens is the Frontline Plus Cat & Kitten Flea and Tick Treatment. Suitable for kittens over 8 weeks of age, this long-lasting and effective flea treatment is super easy to apply.

    In terms of best value, the PetArmor Flea & Tick Squeeze-On Treatment can’t be beaten. This can last up to 6 weeks, but bear in mind that it only acts on adult fleas, not their eggs or developing larvae.

    Whichever flea treatment you choose for your kitten, getting into a regular cycle of treatment means your kitten won’t be plagued by those uncomfortable biting insects and neither will you or your family! This leaves more time for everyone to enjoy those adorable kitten cuddles.


    Featured image credit: Anastasiya Tsiasemnikava, Shutterstock