The Difference Between Cat Flea Shampoo & Dog Flea Shampoo

Flea shampoo for dogs may be very different than flea shampoo for cats. Cats groom themselves by licking their fur. This means that whatever is put on their fur will ultimately end up being ingested. While dogs also lick or bite their fur, they generally limit their licking to wounds or other uncomfortable places.

  1. Insecticides

    • Pyrethrins are a main component in many insecticides. Derived from the chrysanthemum, this chemical is a neurotoxin and quickly kills insects. The problem is, it can affect cats and small dogs as well. Permethrin, a concentrated form of pyrethrin, is a common ingredient in flea shampoo for dogs. Permethrin shampoos should be labeled "for dogs only," and should never be used on cats.

    Insect Growth Regulators

    • Insect growth regulators (IGR) break the life cycle of the flea but are non-toxic to both mammals and insects. However, they can cause eye damage, so it is important to keep the shampoo out of both the pet's and the washer's eyes. IGRs can be found in shampoo for both cats and dogs. Consult a vet before using on pregnant, nursing or fragile animals or on a puppy or kitten under 12 weeks of age.

    Pet's Environment

    • While outside, dogs may pick up grass fleas, ticks and other parasitic insects. Cats may never go outside, but they're exposed to possible contaminants in litter boxes. Shampoos need to match the animal's lifestyle.

    Tips

    • Whenever trying a new shampoo, read the label and make sure that it meets the pet's needs. Check for weight and health requirements. When in doubt, check with the animal's veterinarian.