I bought this for all three dogs and I could not tell that they even had any type of flea treatment on. The fleas actually worsened. I then had to get some Capstar that worked almost immediately.

Pros: easy to size and put on

Cons: did not meet expectations

This produst is affordable and seemed very effective. I did think the scent was almost too much. The collar did make a big difference with fleas and ticks though.

Pros: affordable

Cons: too strongly scented for my dog

These collars may be cheaper than frontline or advantix but they don't work nearly as well. Plus they have a terrible odor and irritate the dogs skin sometimes.

Pros: none

Cons: not effective

this collar is inexpensive but effective, that's what makes it a great help when it comes to getting rid of fleas.

Pros: really helps

Cons: none