We used to use Frontline on all our animals, before I became a Family Wellness Consultant. lol Now I freak whenever I see a chemicals in products so I use an all natural spray on my 2 dogs. It actually keeps the fleas and ticks away and haven't had a problem with either pests this summer. Koby has some skin issues so I don't want to put chemicals on him or have fleas biting him so this works the best for us. Plus the stuff I spray on him leaves his fur shiny and soft and gets rid of the doggie odor. I do beleive Frontline is a good product though, and if I wasn't so health concious I would probably still use it. I have heard bad things about Bio-Spot or Heartz (sp?) flea and tick products so IMO I'd stay away from those.
Andi