Pet Armor Plus contains Fipronil as the active ingredient, while Frontline Plus contains both Fipronil and (S)-methoprene.
Here's a breakdown of their differences:
* Pet Armor Plus: Only targets adult fleas and ticks. It's effective for up to one month.
* Frontline Plus: Targets both adult fleas and ticks, as well as flea eggs and larvae. It's effective for up to one month.
In conclusion:
* Pet Armor Plus is a good option if you're looking for a simple flea and tick preventative.
* Frontline Plus is a more comprehensive option that also targets flea eggs and larvae, providing longer-lasting protection.
It's important to consult your veterinarian to determine which product is best suited for your pet's needs. They can take into account factors like your pet's age, breed, weight, and any existing health conditions.