flea-infested dog and cat

Disgusting fleas, desperate you.

In a flea infestation, you might see fleas on your pet, in your home, in your bed, in your carpet, in your yard – and there are so many more you can’t see. This makes you feel uncomfortable in your own home, dirty, itchy and – because fleas never seem to go away despite your best efforts – helpless.


But don’t worry. There is hope. Our Advantage® family of products arms you in the fight against fleas – on your pet, in your home and in your yard.

Biting flea infestation on cat

On point with pet treatment.

Dog in flea-infested yard

Your home and yard might be under attack.

Help get the upper hand with flea-fighting products from Bayer.

  • Our Advantage® family of flea products is backed by science and proven effective. Our products are designed with technology to help you protect your pet, home and yard from flea infestations in a way that fits your pet — and your lifestyle.

  • Advantage® II for cats

    Advantage II

    A monthly topical application that kills fleas that can cause painful bites.

  • Advantage® II for dogs

    Advantage II for dogs

    A convenient monthly topical application that kills fleas through contact.

  • advantus for dogs


    An over-the-counter flea chew that starts killing fleas on your dog within one hour. Safe for daily use.

  • Advantage® Treatment Shampoo

    Advantage Treatment Shampoo

    A treatment shampoo that kills fleas and ticks on your cat or dog on contact.

  • Advantage® Treatment Spray

    advantage treatment spray

    An on-pet treatment spray that kills and repels fleas, ticks and lice on your cat or dog.

  • Advantage® Household Spot & Crevice Spray

    advantage household spot and crevice spray

    Kills fleas, dust mites, bed bugs and brown dog ticks in hard-to-reach places in your home. Not for use on pets. Use as directed.

  • Advantage® Carpet & Upholstery Spot Spray

    advantage carpet and upholstery spot spray

    Helps control an infestation in your home by killing fleas, brown dog ticks, dust mites and bed bugs. Not for use on pets. Use as directed.

  • Advantage® Household Fogger

    advatage household fogger

    Kills adult fleas and flea eggs for 7 months. Not for use on pets. Use as directed.

  • Advantage® Yard & Premise Spray

    advantage yard and premise spray

    Kills insects, fleas and ticks around the perimeter of your home. Not for use on pets. Use as directed.

Bayer flea infestation infographic

Dog and cat treated with flea-fighting Bayer products

Study to support a
flea-fighting strategy.

  • Review our educational articles for a deeper dive into the flea life cycle and fighting flea infestations.

How fleas keep coming back for your cat. Learn More >

Why breaking the flea life cycle matters to your dog. Learn More >


An Advantage Over
Fleas for Less.

Save $3 on any Advantage® family product.


Need a product for your flea infestation?

Find a flea-fighting Bayer product for your cat, dog, home or yard in your neighborhood.


Bayer 101

See the passion behind the innovative products Bayer has created for nearly 100 years.


1Safeguarding animals from summer heat and pests. World Animal Foundation website. Available at: Accessed May 8, 2017.

2Grace SF. Fleas. In: Norsworthy GD, Crystal MA, Grace SF, et al, eds. (2006). The Feline Patient. 3rd ed. Ames, IA: Blackwell Publishing; 106-107.