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21st Century, Flea + Tick Defense for Cats 8 Weeks or Older, 3 Applicators, 0.017 fl oz Each

By 21st Century

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In Stock
  • Product Code: CEN-00054
  • UPC Code: 026664000545
  • Package Quantity: 3 Applicators, 0.017 fl oz Each
  • Dimensions: 5.8 x 0.7 x 4.8 in, 0.1 lbs (0.05 kg)
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Save $4.00 when you purchase these items today for only $19.69


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Product Overview


Contains Fipronil the active ingredient used in Frontline® - Top Spot for Cats*

  • Fast-Acting, Long-Lasting
  • Kills Fleas
  • Kills Ticks
  • Kills Chewing Lice
  • Waterproof

Kills Fleas, Ticks & Lice

Flea+Tick Defense for Cats contains the active ingredient fipronil that effectively targets fleas, ticks, and chewing lice. Fipronil collects in the oils of the skin and hair follicles, and continues to be released from hair follicles onto the skin and coat, resulting in long-lasting activity.


  • Kills adult fleas before they lay eggs
  • Controls and prevents re-infestation
  • Kills fleas that may cause anemia
  • Protects for one month
  • Controls fleas which may cause flea allergy dermatitis


  • Kills ticks that may transmit Lyme disease, ehrlichiosis, and babesiosis


  • Rapidly eliminates infestations with chewing lice
Suggested Use

Use only on Cats and Kittens 8 weeks or older

Other Ingredients
Active Ingredient %
Fipronil 9.7%
Other Ingredients 90.3%
Total 100.0%

Contains Fipronil the active ingredient used in Frontline Top Spot for Cats

*Frontline® and Frontline Top Spot for Cats® are registered trademarks of Merial.


Caution: Keep out of reach of children

See label insert for precautionary and first aid statements.

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iHerb Customer Reviews

5 Stars
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1 Stars

flea and tick defense awesome

Posted by 5095028846988923463 on May 20, 2016

I've used everything, until now this product within 24 hr period all fleas were gone I love it

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Pet owner

Posted by 4634570116786164326 on May 03, 2016

I have been very happy with this product. I have five indoor cats and it was becoming so expensive to buy the traditional flea guard at the vets office, so I decided to give it a try. I am so glad that I did! Thank you for giving us a more affordable product that still does its' job.

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Posted by Korutherapy on Dec 30, 2015

Works well

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So goes the ticks

Posted by 4938884946393342506 on Nov 25, 2015

Works well with our 4 cats, who are nights in the nature, days inside. We live in Finland, so if weather goes below -15°/c they are nightly inside. Other products like cat's neckless or what they are called, are useless, products to help tics go limp or what ever, are only nuisance. Measured with one cat earlier +80 tics per summer, now only four not so well doing creatures. Good product.

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Works well

Posted by 5065361772283590374 on Aug 23, 2015

My cat has less ticks after using this produkt. Easy to apply. Will repurchase.

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