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Deal.ai › Hartz › Pets
Hartz
Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment

Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment

Best price now

$15.17at ChewyChecked 5 h ago

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Price facts

  • Lowest price today: $15.17 at Chewy (checked Nov 11, 2026).

Our take on the Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment

A topical spot-on flea and tick treatment for dogs, applied between the shoulder blades once a month. It combines an adulticide with an insect growth regulator, so it targets fleas and ticks and also stops flea eggs and larvae from developing. It is one of the lower-cost spot-ons and is sold in weight-banded tubes, so matching the tube to your dog's weight matters. Owners report mixed results: some see fleas clear within a day or two, while others find it slow, greasy, or hard on sensitive skin.

Best forOwners of dogs in the 14 lb weight bandBudget-minded flea and tick controlHouseholds wanting flea egg and larval control tooShort-term or seasonal use
Pros
  • Triple action: kills adults and stops eggs and larvae
  • Monthly dosing, quick to apply
  • Weight-banded tubes for small, medium and large dogs
  • Widely available and inexpensive versus vet-channel spot-ons
Cons
  • Results vary; some owners see fleas persist
  • Can leave a greasy patch and a strong smell at the application site
  • Skin irritation and sensitivity reported on some dogs
  • Not for puppies under 12 weeks or for cats
  • Washing or swimming can reduce residual protection

Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment prices at every store

  • ChewyNew

    In stock

    $15.17+ $4.95 shippingChecked 5 h ago
    Visit Chewy

Store links may earn us a commission. Price via Klarna.

Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment price history

Lowest price we've seen: $15.17 on Nov 11 at Chewy. Tracked across 1 store since Nov 11.

What reviewers say

Owners are split. Some report fast flea knockdown and fewer fleas in the home within days, while others say fleas kept coming back or their dog reacted at the application site.

What people mention
  • EffectivenessMixedSome owners see fleas cleared quickly; others say fleas persisted or came back.
  • Skin reactionCriticisedSome dogs itch, redden or lose hair at the application site.
  • ResidueCriticisedThe liquid can leave a greasy patch and a noticeable smell.
  • Ease of usePraisedOwners find the tubes simple to open and apply between the shoulders.
  • DurationMixedSome say protection holds the month; others see fleas again before the next dose.

Specifications

Food Type
SupplementsSource
Weight (lb)
14.0Source

Questions and answers

How often do I apply it?
Once a month. Apply to the skin between the shoulder blades, parting the fur so the liquid reaches skin rather than coat.
Can I use it on puppies or cats?
It is for dogs only and not for puppies under 12 weeks. Never apply a dog product to a cat; use a cat-specific product instead.
Does it kill ticks as well as fleas?
Yes, it targets fleas and ticks and also contains an insect growth regulator that stops flea eggs and larvae from developing.
Can my dog swim or be bathed after application?
Wait until the product has dried, and avoid bathing or swimming for a couple of days. Frequent washing shortens the residual protection.
How does it compare with vet-prescribed spot-ons?
It costs less and adds egg and larval control, but vet-channel products such as those with fipronil or isoxazolines are generally considered stronger and longer-lasting, especially against heavy infestations.
What if my dog reacts at the application site?
Bathe the area with mild soap and water and stop using it. Contact your vet if redness, itching or hair loss persists.
Where is the Hartz UltraGuard Pro Triple Action Flea & Tick Spot Treatment cheapest?
At Chewy, for $15.17, as of our latest check.

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