5 Way Repel-and-Kill Pest Protection
K9 Advantix combines imidacloprid and permethrin to repel and kill ticks, fleas, and mosquitoes that may cross your dog's path. Each ingredient begins to affect pests through contact, attacking parasite nerve cells at different sites. When combined, the two compounds overwhelm the parasite's nervous system.1 This leads to rapid paralysis and death of the parasite. Prevents ticks from attaching; Stops biting fleas; Repels Mosquitoes; Treats Chewing Lice

No need to reapply after a bath or weekly swimming
Does your dog love the water? No problem! K9 Advantix is waterproof. Studies have shown your dog will still be protected after exposure to water—whether your dog has gone for a swim, has been given a bath or has been in the rain. For best results, dogs treated with K9 Advantix should be bathed with a non-detergent shampoo.

Features:
Killing fleas on dogs within 12 hours
Killing fleas before they lay eggs
Killing the flea larvae stage