What is the difference between FRONTLINE ® PLUS and FRONTLINE ® SPOT ON? Both products kill fleas and ticks on your pet, however FRONTLINE® PLUS has an advanced formula that also stops flea eggs that fall off pets from hatching in your home.

24 hours How long does Frontline take to work? Frontline starts working once the product has spread over the whole body surface, which can take up to 24 hours after application. Thereafter, fleas are killed within 24 hours and ticks killed within 48 hours.

FRONTLINE ® flea and tick treatment effectively targets all stages of fleas and ticks. 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 effective tick and flea control for long-lasting activity against fleas and ticks.

It works by affecting the central nervous system and creating irregular uncontrolled activity before death. For this reason, adult fleas may become more visible prior to death as the fipronil causes irregular movement and fleas are seen to 'dance' and lose their instinct to hide.

Frontline Plus. This name-brand product is constantly recommended by veterinarians and pet owners alike, but does it live up to its hype? Check out our in-depth product review to see what we conclusions we came too…

FRONTLINE is usually used as FRONTLINE Spot On, but there are occasions when applying as a spray is more suitable. This can be more difficult to apply, but in some situations is more effective, and there is a longer activation of the treatment.

Seeing fleas after treatment isn't really about how long it takes for flea treatment to work or for fleas to die. It's about the number of life stages in the pet's environment that develop into new fleas and jump on a pet.

Fleas that are dying often come to the coat surface and move around excessively – making them more visible.

An oral fast-acting tablet that contains Nitenpyram is the safest way to kill fleas on dogs instantly. You can also bathe your dog in hot soapy water with Dawn to kill adult fleas, but this is not a good long-term solution.

Topical products with fipronil (e.g. Frontline) do not repel or prevent tick attachment, which means you may still see ticks crawling on your pet. It will not kill ticks until after attachment for 24 hours.

FRONTLINE PLUS® and FRONTLINE® SPOT ON kill fleas within 24 hours of them arriving on the pet, while FRONTLINE TRI-ACT® kills fleas within 6 hours of them jumping on a dog. There are a couple of key things to remember, whichever treatment you've used.

As eggs hatch and develop, you might find fleas reappearing 10-14 days after treatment - this is quite normal and provided the insecticide remains in place it will kill them. This is why it is important not to carry out cleaning which might remove insecticide.