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🐾 Protect & Shine: Flea-free days and safe night strolls!
The Hartz UltraGuard Pro Reflective Flea & Tick Collar offers 7 months of continuous, water-resistant protection against fleas, ticks, and their eggs. Designed for dogs and puppies 12 weeks and older with necks up to 26 inches, it features a reflective strip visible up to 450 feet for enhanced nighttime safety. Easy to activate and comfortable to wear alongside regular collars, it’s the all-weather, all-stage solution for proactive pet care.






| ASIN | B076YHCXPR |
| Active Ingredients | Methoprene |
| Age Range Description | All Life Stages |
| Allergen Information | Latex |
| Best Sellers Rank | #566 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Dog Flea Collars |
| Brand | Hartz |
| Brand Name | Hartz |
| Customer Reviews | 4.1 out of 5 stars 13,868 Reviews |
| Global Trade Identification Number | 00032700155933 |
| Included Components | 7 month Collar (1) |
| Item Form | Collar |
| Item Type Name | Ultraguard Pro Dog Flea & Tick Collars |
| Item Weight | 0.12 Ounces |
| Manufacturer | Hartz |
| Manufacturer Part Number | 032700155933 |
| Model Number | 032700155933 |
| Scent | Fresh |
| Scent Name | Fresh |
| Target Species | Dog |
| UPC | 032700155933 |
| Unit Count | 1 Count |
J**R
Works just as good as the more expensive brand if not better!
This cheap thing is amazing! My fur babies have had issues with fleas since moving to a more rural area. I take them out for walks frequently and I would have to take them a bath every other week. That did not help. I bought the flea medicine that goes on the back of the neck. That never worked. So, before buying the more expensive flea collar I decided to give this a go. The difference is NIGHT AND DAY. My babies scratching has gone down 95%! As soon as I put it on almost immediately the scratching stopped. I will continue to use flea baths however; these work wonders for both my 30 pound and 12 pound pups.
M**L
All Pros So Far, This Was The Safest Collar I Found As Far As Side Effects
I’ve had it on my outdoor cat for 3 days so far so good. I found a tick under his collar prior to this purchase. I’m hoping he remains tick free. He has a tracker collar on, the flea & tick collar is under his other collar. I’ve been checking him and so far there’s no reaction. No irritation, no hair loss and it doesn’t bother him, he’s unaware of it being on. You can cut the length you need. There is a whole lot left after it’s cut. Too bad it doesn’t come with another buckle. You could use it as a backup or make two collars. It doesn’t have a strong scent and when I looked it up it shows as non toxic to cats. It was fairly easy to put it around his neck. I left it extra long and tightened it as needed when it was on instead of trying to undo the buckle or whatever you call the front piece lol. So far so good, happy with the purchase. I’ll update if I find it not working but I also have flea & tick drops on him as well.
D**A
It Works but… Monitor Your Animals Closely
It worked, but it caused problems. I’ve bought this collar 3 times and trialed, and I know that correlation isn’t necessarily causation, but I feel it is important to put out here. Side effects; my dog experienced not one but two UTI’s after using this. He is 6 months old and with the week of putting on the collar became incontinent. After another week I took him to the vet where he was dx with a UTI. Collar broke the next day, so it didn’t last long (big dog, fast growing, snagged and ripped the plastic securement off). His symptoms cleared up, and we went on. I bought another one after this thinking that since he was feeling better he could tolerate the medicated collar again - I was wrong. The exact same slew of symptoms started within the week of applying. Wetting the kennel, incontinence at night, howling while peeing, etc. I took the collar off again, and gave him cranberry supplements on vet recommendation and it took another 2 weeks to clear up. Tried it once more and the second I saw a moment of incontinence I took it off. TL;DR I think my dog is allergic to it or experiencing an unlisted side effect. It functions for the animals who aren’t allergic to it. Be aware of your animals normal functions and watch closely for changes. He could have died if we weren’t watching the changes medically - we are new dog owners and he had a persistent fever for over 2 weeks and we didn’t catch on because we didn’t know.
P**N
Flea and tick free
Works great, no bugs on my dog
A**R
Attracts fleas
Bought 7 collars 2 for dogs and 5 for cats. Hart flea collars attract fleas, they do not kill fleas. I've always used seresto collars and they work like magic. Collars weren't lasting full 8 months so I asked my vet. He said try different collars, maybe fleas population is developing immunity. Didn't have super high hopes with these because they seemed way too cheap to actually last as advertised. However, 11k reviews with 4 stars what would it hurt to try..... Gave everyone capstar to kill anything on them. Received the collars 2 days later and put them on. No visible fleas on my dogs or cats when collars went on. Some flea eggs, but collar should be working by the time they hatch. Figured we would be good.......11 days my animals had these collars on and the fleas exploded! The dogs had huge nests of flea eggs 2 in away from the collars and huge nest of flea eggs on their bums (not there when collars went on). The fleas were crawling all over them and me! My poor cats weren't any better with the fleas playing on their collars and crawling all over their faces. Fleas were 4 times worse then when I took the old seresto collars off. They were everywhere! Pulled these collars off received new seresto collars 2 days later. Within 4 days wearing new seresto collars no more fleas on dogs, no more fleas on cats, no more nests of flea eggs, no more fleas in the house. These may work for some, but they definitely did not work for us. Makes me wonder if reviews were skewed. Will stick with seresto, even if they quit working a month early, still way more reliable and cheaper than other options I've found.
L**K
Something has changed
I wonder if they changed the formula for this collar, because I have purchased 2 times now. Used the first order all last year for my 13 pound dog with no issues. It worked great! Ordered again for this year and within 2 weeks of wearing, my dog has a rash around his neck where the collar sits. He was itching so much and even bled in some spots. We removed the collar and he hasn’t been itching and his rash cleared up. I am not sure what exactly changes in the last 12 months, but unfortunately my dog won’t be able to use this because he had an allergic reaction. If your dog doesn’t have a reaction, the product works great!
S**E
Works great on my dog
This collar is very easy to put on and it stays in place. I love that it lasts for 7 months so I don't have to worry about fleas for a long time.
I**A
100% effective
Excellent product .I had bought one that was much more expensive, and it didn't do any good at all; this one, however, drove the fleas away within the very first week. I've already repurchased it twice, and I recommend it 100%.
Trustpilot
1 month ago
2 weeks ago