








🛡️ Protect your best friend like a pro—because they deserve UltraGuard!
Hartz UltraGuard Pro is a fast-acting, monthly topical flea and tick treatment designed for dogs 61-150 lbs. Featuring dual Insect Growth Regulators, it kills fleas, ticks, and their eggs while repelling mosquitoes. The patented Pro-Glide applicator ensures easy, mess-free application, delivering 6 months of continuous protection in one box.






| Active Ingredients | Etofenprox, N-Octyl Bicycloheptene Dicarboximide, Piperonyl Butoxide |
| Brand | Hartz |
| Customer Reviews | 4.3 out of 5 stars 2,898 Reviews |
| Item Form | Drops, Liquid |
| Item Volume | 0.22 Fluid Ounces |
| Item Weight | 0.1 Pounds |
| Scent | Topical |
D**T
It really works I would recommend to anyone
Why pay the big money they try to sell you, this simple product works and works a long time.
C**G
Good value
Good value for the price, but still not sure of the effectiveness. My dogs didn't have fleas before treatment, and still don't, so I guess it works? Regardless, I like that I get 6 doses per box for the same price for 2 of some other brands.
M**E
Slow acting but does work!
I have an Australian shepherd and live in dense woodland! I put this on my dog and didn’t get much relief after 30 days. I did notice the ticks were smaller and not bloating on her! Decided to give it a chance and gave her a second dose. The second dose did the trick. She is tick free and I appreciate not having ticks on my furniture and on me!!!
C**N
buen precio y efectivo en la prevención
cliente frecuente de este producto , mis perras nunca han tenido pulgas ¡¡ y lo encuentras a mejor precio que en las tiendas de mascotas
I**T
Would not Purchase Again
Did not care for this item - the drops were messy, and did not work well. They also ended up ittitating my dogs skin. I ended up having to purchase another product.
K**E
Great product
Why did you pick this product vs others?: Works great for my pups. I am not a fan of giving any more pills than required, so I use the topical. Additionally, my girls have sensitive skin and have experienced very dry, itchy skin from other products. This one contains Aloe, so we haven't seen the skin irritation with the product.
M**T
Works Well
Has worked well so far for my chihuahua mix. No irritation, bad smells, or side effects
T**Y
Didn’t work
Easy to use but did not work for any of dogs.
Trustpilot
3 days ago
4 days ago