HartzUltraGuard Topical Flea & Tick Prevention for Cats and Kittens - 3 Monthly Treatments

If you live in the US South, I don't believe this will be strong enough. From what I read, enough fleas can become immune to Etofenprox, the active ingredient in this product, whereas a combination of Imidacloprid and Pyriproxyfen are much more effective because they use unique biological attacks on fleas and the growth cycles. Others include Selamectin (Revolution) or Fluralaner (Bravecto).Feature Etofenprox Imidacloprid + Pyriproxyfen Selamectin FluralanerKills Adult Fleas ✅ Yes ✅ Yes ✅ Yes ✅ YesKills Flea Eggs & Larvae ❌ No ✅ Yes ✅ Yes ❌ No (but prevents reinfestation)Tick Protection ❌ No ❌ No ⚠️ Limited ✅ StrongMite Protection ❌ No ❌ No ✅ Yes (ear mites, sarcoptic mange) ❌ NoWorm Protection ❌ No ❌ No ✅ Yes (roundworms, hookworms) ❌ NoHeartworm Protection ❌ No ❌ No ✅ Yes ❌ NoDuration ~1 month ~1 month ~1 month ~12 weeksBest For Basic flea control, but resistance issues Stronger flea control, prevents reinfestation Broad parasite control, including worms & mites Long-lasting flea & tick control

Great deal on the flea medicine for our cat. Easy to use. Affordable. Safe to use. Has not irritated my cat. No worry about tasting it. And it seems to be working great.

The main active ingredient, Etofenprox, is toxic to cats and can likely cause seizures, liver failure, death, etc. Please please just do a simple online search and check out a few different pages to find out more about this product. Google says it’s “generally” safe but I believe that’s the big companies paying people to say that. Just read a couple articles or science journals with studies of the effects of this ingredient on cats and you’ll see. There are also THOUSANDS of horror stories online of HARTZ flea medications & shampoos KILLING peoples pets. I’m not even exaggerating. I did not find out until after I gave my cat his first ever dose of this. I couldn’t afford our usual monthly flea medication and opted for this just for one month and figured that since it’s a widely known brand that I see everyday at the stores, it would be fine. No! I administered to my cat and my 2 dogs and could immediately tell something was wrong and I watched them for a couple hours and the symptoms were getting worse. My cat was really bad he was twitching a lot and drooling and he’s never done this with any flea medication in his entire life before (he is 8yrs & has always gotten flea medications his entire life) and my dogs were super lethargic and wouldn’t eat dinner. Called my vet who recommended that I wash everyone’s medication off as quickly as possible (luckily it had only been on a few hours at this point). After I washed everyone off thoroughly their symptoms stopped. I started researching this product to see if anyone else had experienced this because I was so confused and to my HORROR this product has been poisoning and killing people’s pets for decades!!!!!! Not kidding. I am so shocked that they are still able to be functioning and haven’t been shut down yet. It’s so wrong.

I know there have been cases where this has not been safe for animals, so for that reason I am knocking a star. However, that has not been my experience. I have used this on my 2 cats whenever they have gotten fleas. They’re 6 years old now and I have had to buy this a couple of times. They don’t get fleas very often, but most recently my dog was completely infested. I figured the cats gave him the fleas so I checked it out and they didn’t have much.. I wasn’t going to end up using it, until a few days later, I realized the cats were getting full of fleas. Fleas were jumping all over the furniture. Gross.With three pets, the fleas can get bad quickly. When it was just my two cats, fleas would be gone in 2-3 days after use. This time with a huge pit and the 2 cats, it took a couple of extra days and I had to put a little more effort towards the cleaning. Still, it worked. It’s affordable and my cats have not had any reactions. I like to do the treatments separately now, because if not, the cats will start to groom each other and that is the only time I noticed anything weird. One of my cats was eating it off the other and was drooling. He’s fine now.It’s important to separate the pets during treatment if possible. I tried the dog one for the first time around and that will be the true test because my dog was COVERED. But that’s a different product.. either way it also seemed to work.I usually have one or two left over and apply it as soon as I notice a flea.Happy to report the fleas have been eradicated!The more pets you have, and bigger the infestation, the more “damage control” cleaning you will have to do if you want these suckers gone faster.When it was just one cat, I didn’t even have to clean, fleas would just be gone.

These repel fleas for a fraction of the cost of the other brands. I have a half feral outdoor cat that's all over the fields and woods. Says 30 days but actually repels fleas for around 6 weeks

I have used before but it seems like the formula may have changed as the cat lost hair on his neck and down his back where I applied it. I probably will not buy again

I use this every month on my 6 cats. I buy 2 of them. Normally I would buy them at the local Walmart, but their price went up like $1.50 each one. I found them here on Amazon at the price was the same as it was, when I used to get them there. They work. They keep my cats free of fleas & ticks. If you can’t afford a Vet visit for every single cat every year to get the ones the vet gives you; these work!

I use this on my outdoor cats. In my opinion it works really well without spending a lot of money. But what I really like about it is that it doesn’t leave a greasy residue on the cats fur.