Is Hartz UltraGuard spray safe for dogs?
Christopher Pierce
Updated on March 03, 2026
Hartz UltraGuard Plus Flea & Tick Spray for Dogs Caution Harmful if swallowed or absorbed through skin. Causes moderate eye irritation. Avoid contact with eyes, skin, or clothing.
How do you use Hartz UltraGuard flea and tick spray?
Hold bottle upright about 6 inches from pet and spray lightly until the tips of your dog’s fur are moist, taking care to avoid contact with the eyes. Rub spray into your pal’s coat and rub them dry with a towel after 10 minutes. Comb and brush coat. Repeat weekly if necessary.
Does Hartz UltraGuard plus work?
It wasn’t uncommon for them to have 30 ticks on them. I tried this, really not expecting it to work but it works! No ticks, no fleas, and it smells great. Highly recommend!
How does Hartz flea spray work?
The bottle instructs you to spray bedding/floor/etc until damp and let dry. The main active ingredients in this product are insect growth regulators, which helps prevent flea eggs from hatching. You will still need a product to kill live fleas and ticks.
How do you use UltraGuard Plus flea and tick Spray for Dogs?
Directions for Use
- Hold bottle upright about 6 inches from pet.
- Spray lightly until the tips of the pet’s hair are moist.
- Rub spray into animal’s coat.
- After 10 minutes, dry dog with towel.
- Comb and brush coat.
- Repeat once a week.
- If you see a tick, spray it directly.
Can you spray flea spray on a dog?
Best Natural: Vet’s Best Flea & Tick Pet & Home Spray This natural flea and tick treatment is safe to spray directly on your dog, and can also be used to treat upholstery, pet bedding, carpets, and more.
How long does flea medicine take to work Hartz?
15 minutes
Hartz UltraGuard® Topicals start killing fleas within 15 minutes after application and continues to kill for 30 days.
Is Hartz bad for dogs?
Both the active ingredients and product formulations in Hartz UltraGuard® topical flea and tick treatments have been rated among the safest, least toxic available to pet owners today.
How long does it take Hartz flea and tick drops to work?
Is Hartz flea spray safe?
Hartz UltraGuard Plus Flea & Tick Home Spray Caution Harmful if absorbed through the skin. Causes eye irritation. Avoid contact with skin, eyes or clothing.
Do flea sprays work on dogs?
Best Overall: Adams Plus Flea and Tick Spray for Cats and Dogs. Make quick work of eliminating fleas and ticks with a convenient and effective spray, like the Adams Plus Flea and Tick Spray. This is our top overall pick for a flea and tick treatment for your four-legged friend.