Given orally, in as little as 30 minutes fleas will begin to fall off your pet dead as doornails. Little City Dogs FLEA KILLER"s effectiveness peaks at 3-4 hours and is out of your pet"s system in approximately 24 hours. This product can be used daily, or just as needed. LCD Flea Killer capsules will kill all the fleas on your pet, but these are only the adult fleas. The eggs fall off your pet and onto the floor where they develop into larvae and pupae. Kill ADULT FLEAS with Little City Dogs FLEA KILLER. Kill Juvenile fleas with Little City Dogs FLEA CONTROL. Kill the fleas on your floor with Little City Dogs KILLER DUST. BEWARE OF KNOCKOFF SELLERS selling imitation products of questionable effectiveness and safety. LITTLE CITY DOGS PRODUCTS ARE ONLY SOLD BY AND ARE SHIPPED DIRECTLY FROM LITTLE CITY DOGS.