Mosquitoes can transmit Heartworm disease in a single bite.

It’s best to not bathe your pet 48 hours prior to application. After application, wait 24-48 hours before bathing.


Looking for effective flea control for less?
Want to avoid the anxiety associated with
tick removal on your pet?

Hartz® UltraGuard Pro® Flea & Tick Drops for dogs and cats offers effective flea and tick control and prevention for up to 30 days in an easy to use, no mess applicator, at a fraction of the cost. Compare and save.

Whether you have an immediate concern with how to kill fleas or you are interested in preventing a flea and tick problem, HARTZ® ULTRAGUARD PRO® FLEA & TICK DROPS offers 30 days of effective protection for your dog or cat.

Hartz® UltraGuard Pro® Flea & Tick Drops for Dogs now features the New Pro-Glide angled applicator! Easily gets through the fur, glides quickly through the coat and applies smoothly on the dog’s skin.

  • Kills and repels fleas and ticks
  • Kills mosquitoes
  • Kills flea eggs and flea larvae
  • Prevents re-infestations
One tube gives 1 month of protection

Hartz® UltraGuard Pro® Flea & Tick Drops for Cats features the Pro-cision Flo® applicator which makes it easy to penetrate the fur for improved application directly to your cat’s skin.

  • Kills fleas and deer ticks
  • Kills flea eggs and flea larvae
  • Kills and repels mosquitoes
  • Prevents flea eggs from hatching
One tube gives 1 month of protection

HARTZ® ULTRAGUARD® offers a wide array of On Pet, In Home and In Yard products making it easy for you to choose the right pet protection plan.

Need help choosing the right products? Answer 5 simple questions and let our resident veterinarian, Dr. Melinda, customize the right assortment for your pet’s needs.