Simply sign up for the Hartz® UltraGuard® free treatment reminder service and we'll send you an email each month when it's time to re-apply flea and tick protection to your dog or cat.

  • Fleas are still active even when the weather gets cold and they can bite anyone who comes into contact with an infested dog, cat or home.
  • All cats and dogs in your household should be treated as fleas can easily spread.
  • Your pet's health is important to us. We recommend year round treatment for total protection.

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Hartz® Ultraguard® is committed to strengthening the bond between all pets and their families by providing innovative, trustworthy and affordable flea and tick products; along with the knowledge and support to care for pets.