My dogs got fleas while they had this on, I had to go get the collars for them, they work.

We have used this brand for years. Seems to work really well.

Have 8 dogs and it works well on all

Works good, easy to apply.

My dog has no complaints! No fleas or ticks here

Dogs had 3livecticks on them post application

Great price for a good product.

Just as good as the expensive brands!

Application was easy, will buy again.

Have used this for many years and found it to work great. Luckily don't have any ticks in my immediate area so no problems there.