Frontline PlusŪ Is A Monthly Application That Kills 100% Of Fleas And Their Larvae Within 24 To 48 Hours. In Addition, Frontline PlusŪ Breaks The Parasite Life Cycle, Thus Preventing Them From Laying Eggs And Reproducing. Frontline PlusŪ Is Applied To The Back Of The Neck On Cats And Between The Shoulder Blades On Dogs. It Spreads Naturally On The Skin Surface At The Hair Root Level, Aided By Body Movement To Provide Whole Body Coverage. Frontline PlusŪ A Is Water-Resistant Flea Medication, So It Continues To Kill Fleas Even After A Shampooing, Swimming, Rain Or Exposure To Sunlight. Frontline PlusŪ Is For Dogs And Cats Over 8 Weeks Old. Do Not Use Frontline PlusŪ On Dogs Less Than 11 Lbs.

Kills 100% Of Fleas And Ticks Within 24 To 48 Hours. Contains Fipronil, A Special Ingredient That Spreads By Way Of Your Pet's Body Oils To Nullify A Parasite's Nervous System, Causing Paralysis And Death. Frontline PlusŪ Also Contains Methoprene, An Insect Growth Regulator, Which Makes It Impossible For An Insect To Grow Or Reproduce. Kills Fleas Before They Have The Chance To Lay Eggs - Thus Breaking The Flea Life Cycle. Generally Kills Fleas Before They Bite, Thus Reducing The Risk Of Sickness, Allergies And Disease Transmission. Water Resistant - Continues To Kill Fleas After Swimming, Shampooing, Rain Or Exposure To Sunlight. In Pre-Measured, Child Proof, Easy-To-Use Applicator Tubes. Stain And Odor Free!