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Hartz-Mountain Hartz Ultraguard ProMax Dog Flea and Tick collar has it all with 6 months of full body protection and comfort technology. Get advanced access to product discounts and promotions, test new products and provide valuable feedback. Service or assistance dogs can be found hard at work each day providing guide, hearing, seizure response, and emotional support for people.

If you own a dog, you are likely used to being greeted at the door when you come home and showered with lots of kisses and tail wags. Just because your cat may not react the same way after not seeing you for a while, doesn't mean he loves you any less!
Reviews (12)
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Rosemary Fahey
Mar 05, 2022
Purchased 2 squeaking play balls for my dog. I have had one for a year and it was her favorite toy. The 2 new ones were no where near the same quality. They are made from soft flimsy rubber and the squeaker broke within a week! So disappointed in quality. Thank goodness I bought them from Chewy so they reimbursed me. Not a great idea for Hartz to cheapen their products!
Kristine Cahoon
Jan 19, 2022
My cat Loves the Delectable meals. He ask for them. Eats better and is happy.
Jessie H.
Apr 19, 2021
As most of us do we don't read the fine print on products. We must start doing that with our furbabies. I bought your product Harte Ultra Guard Pro for cats. When I put the drops on the back of his neck he screamed and he ran off. I didn't see him for hours I was really worried. When he returned I was shocked the spot where I applied the drops his hair was gone. I felt so bad for him that I had done this to him.
Katia
Mar 25, 2021
First of all, read all the reviews about what their products did to people's pets. Yikes! Also, had the misfortune of interacting with one of their employees. They think it's cool to talk down to people. This business has no redeeming qualities. Do yourself and others a favor and take your business elsewhere!
Melanie Bentz
Mar 14, 2021
DO NOT BUY THESE FOR YOUR PET! My poor dog is currently in the hospital recovering from surgery due to your product. You advertise as these treats being "raw hide free and highly digestible" yet, I had to bring my dog in for emergency surgery due to a blockage in his intestines and what do they pull? A oinkie, that is actually made of raw hide! Your product almost killed my dog.
Julie
Mar 18, 2020
We bought Hartz Bonanza rabbit treats for our bunny because the store was out of bunny food. This killed our bunny. He was healthy and happy until he ate these. I don't understand how a company can sell a product geared towards a specific type of animal and it not be good for them. My family is devastated over this loss. I will NEVER buy anything with the Hartz name on it again. Shame on you!
Kelleigh Doyle
May 11, 2019
DO NOT USE THIS PRODUCT. I used Hartz kitten and cat flee topical on my cat and she immediately started reacting as if her neck was burning. She was pacing through the house and hissing (this is not her normal behavior). I put her in the bath immediately and took her to the Emergency Vet. I was told BY THE VET that this product can make animals have seizures, convulsions, and worse.

My cat had to be sedated and temporarily lost some function in her back legs. I've heard MUCH WORSE happening to dogs and cats, such as the topical area leaving BURN marks and hair not growing back on the area of where the topical was applied.
James Parochetti
Nov 28, 2018
I wrote a letter to our senators about a decade ago requesting that these items be removed from store shelves and to enforce regulation of these products. After using the flea shampoo, I saw first hand how sick my cat got. This is probably the most heartless corporation I can think of. Items that expose pets to severe risk must be treated the same as items that are sold to humans! There is no excuse to expose the risk of your customer's pet to make a little money.
Justin Nicholls
Jan 18, 2018
Today I bought this medicine to help are cat buddy with Flea's and Tick's. About 15 minutes later he started to act abnormal he was running and hissing at us and he was sneezing We immediately gave him a bath to get it off of him he immediately calmed down and was back to normal. And at this time he is back to how he was before giving this medicine to him.

Please whatever you do. Do not give this or put it on your animals do not please don't. You will regret it. This product should not be sold in stores this company needs to be shut down. They don't deserve to run a company
Vicki M.
Jun 12, 2017
It killed my pet. I used the Hartz Ultra Guard for cats and kittens. My 7 year old cat had to be put down this weekend. After using this product, my cat got really sick. I took him to the vet and the vet said that his organs were shutting down and asked me what flea treatment I used. She said that it can affect cats severely. There was nothing she could do.

I advise everyone DON'T USE THIS PRODUCT! If this is what the Hartz Mt Corp thinks about pets, DON'T USE ANY OF THE HARTZ PRODUCTS! I am sick about loosing my cat - my companion - my buddy. I am throwing away the unused product and will never buy anything from them again. Also, I will tell everyone I know. They are a terrible company.
Rachel Cummings
Feb 18, 2017
DO NOT BUY THEIR PRODUCTS they are dangerous chemicals and may harm your animal or worse kill them. Please be careful and if you do use them rinse it off immediately with soap and water. My cat acted very strange I'm just fortunate I caught it early.
Serge K.
Feb 05, 2017
Hartz WANTS your pets to die. They kill more American pets than ANY other companies combined. The only companies that kill more animals than Hartz are pesticide companies. Hartz is a Japanese owned company where profits come before ANYTHING! They take great pride in how many American pets dies because that figure is in DIRECT relationship with their profits.

They have a 1 star Consumer Affairs rating and are easily the worst and most dangerous company in America. Hartz should be closed down and never allowed to operate in the United states again. They have been subpoenaed to remove their products from shelves. They merely rebrand the same product and put it back in stores knowing full well that these products are the deadliest in the world for your animal.

They dodge any responsibility after having killed my daughter's cat. Hartz killed it with their HartzGuard Plus cat poison. Even after people are no longer working for Hartz, don't ever hire anyone who has worked for Hartz because they are willfully ignorant of the death they cause and that makes them evil. If you ever see a vet with "Hartz" on their resume, DON'T TRUST THEM!

They know Hartz kills more animals than anyone in the world and have FULL knowledge that their Consumer Affairs rating is the worst in the world and they are responsible for more deaths than anyone in the known Universe and they continue to block victims from receiving justice for their murdered animal. That immediately disqualifies anyone who has ever worked for this company from claiming that they are concerned with animal safety and health.

Former employees who worked inside their labs say that their engineers can calculate how many animals will die with their compositions and are constantly reminded of how dangerous their products are and that they have a very high rate of acceptable deaths. Never buy ANY HARTZ products and NEVER shop at stores who sell Hartz products like Petland Discounts and Petco.

Take a look at their Consumer Affairs page and judge for yourself. One star across the board and more dead animals than a Steven King horror novel. The company is owned by a Japanese company called Unicharm whose CEO is Takahisi Takahara and the company produce pet and human products that are of the absolute lowest quality in world. Real pet product stores DON'T CARRY HARTZ BECAUSE HARTS KILLS! Petition to get this company closed forever!