Frequently Asked Questions
I’ve been using Advantage® II on my pet, is PetLock® II just the same?

PetLock® II has the same active ingredients used in Advantage® II and will protect your pet from fleas and chewing lice.

I just applied PetLock® II, but I’m seeing more fleas on my cat than ever! Why?

As the fleas die, they rise to the top of your pet’s hair coat where they are more visible.  Be assured, PetLock® II is working!

How long does it take for PetLock® II to start killing fleas?

PetLock® II is a fast-acting solution. The product kills existing fleas within 12 hours. Reinfesting fleas are killed within 2 hours with protection against further flea infestations lasting for up to 4 weeks.

Is PetLock® II safe for kittens and pregnant cats?

Do not use on kittens weighing less than 1.5 lbs. and less than 8 weeks of age. Consult your veterinarian before using this product on pregnant or nursing cats.

Is PetLock® II Waterproof?

Yes. PetLock® II is waterproof and remains effective following swimming and/or shampooing, and after exposure to rain.

Can I get my money back if PetLock® II does not work on my pet?

Yes, you can return the product to the retailer for a full refund.

Will PetLock® II take care of all my flea problems?

No, in addition to applying PetLock® II  to your pet, you should treat your pet’s environment by heavy vacuuming (seal and throw away bags) and washing bedding in hot water.  Flea traps, sprays, and cedar chips (fleas hate the smell) are other options.  If you do not treat your pet’s environment, you will miss more than 90% of the developing flea population (eggs, larvae and pupae).  See the life cycle of the flea.

Where can I purchase PetLock® II?

See Where to Buy for retailers near you.