HartzUltraGuard ProMax Flea & Tick Collar for Dogs I 12 Months Protection I Soft & Comfortable Flea & Tick Prevention I 2 Pack,Gray

6 months later, I found 2 ticks on a rear paw of our big dog. We live in the Philippines in a neighbohood with lots of dogs wandering around, so we are glad to have been tick free for 6 months. We were not able to find tick collars here.

I bought these for my miniature dachshund puppy and a doberman pincher. They both broke out a terrible rash around there neck within a week. I've never experienced this before. I took them off and threw them in the trash...

Doesn’t work. After a month or two I found fleas right by the collar. Didn’t last long at all.

After two weeks of wearing the collars, I could tell they were working. Ticks are very problematic in our area. One of my dogs did fine with this collar and the other developed a reaction that gave her scabs on her neck. I’m gonna try a collar with a different ingredient for her. This works great for one dog, but not the other. I would still give them a try. they were definitely working and I’m sure my dog simply has sensitive skin. These are a great alternative to Seresto. However, I’m gonna have to try a pricier collar due to her allergy.

I bought these collars to help keep my Belgian Malinois and GSD free of ticks as well as to repel mosquitos. The mosquito repellent feature was the main reason I bought these collars compared to the Saresto collars that do not repel mosquitos. I'm sad to say these collars have not repelled mosquitos to my satisfaction. My dogs have not been exposed to rain or anything that could hinder the effects of the collars effectiveness. One of the collars also broke when I was putting it on my dog for the first time. I do not recommend this collar for repelling mosquitos, but it does seem suffice keeping ticks off my dogs.

Did not last 12 months.. only lasted about four months

Had a China knock off and the collar slipped out of adjustment and fell off. Hartz stayed in place much better - not perfect on these 130# dogs. Plenty long to go around his fat neck. Never notice insects on these outside dogs either. Including a Lab/Shepherd mix with a thick coat. I'm already buying for this year.

Love these tick collars, they fit our three dogs perfect that are various size of dogs. They do not bother the dogs and with living in the country our animals were always getting a lot of ticks but not with these they work amazing!