Both AdvantageandK9 Advantix are made by the same manufacturer, Bayer, and have the same main active ingredient, Imidacloprid, but have some key differences that will determine whether the product is the best choice for your pet.

These are monthly topical treatments that kill adult fleas, helping to break the breeding cycle by eliminating them before they can lay eggs. They also kill biting lice in dogs.

Advantix has an additional active ingredient, Permethrin, which allows it to kill ticks and help to protect your dog from the diseases they carry.

Advantage topical is available for both dogs and cats, with the exact product required based on your pet’s type and body weight. Advantix is available for dogs only and must not be used on cats.

Top tip: Fleas and ticks can carry nasty diseases, but protecting your pet doesn’t need to be difficult. Use our comparison chart to weigh up the pros and cons of the most popular products.