Works well as a supplement to Frontline. My dog's got very thick fur and needed an extra something to get under all that and it worked, no ticks all summer and she lays under shrubs. No ill effects on sensitive/problem skin either. Not very good against mosquitos at all, though.

Pros: good against ticks, sensitive skin safe, spray on application

Cons: not very effective against mosquitos

this helps but not alot it works great when used in combination with advantage or frontline

Pros: helps a little

Cons: not very effective

I spray this on my doxies bedding . I guess it works but you also need to use frontline or something.

Pros: easy to use

Cons: none