Our 15lb. Lhasa Apso doesn't get out all that much, she was a rescue dog with serious allergies and knee problems. However, when she does get out, we worried about all that long hair attracting fleas and ticks; and her bald spots where her allergies are active attracting mosquitos, etc. She also has taken to walking to a patch of forest to go #2 about couple blocks away that is rife with all kinds of nasty little nippers. We haven't found anything yet. Best of all, we're saving tons not having to buy hartguard for vector-borne heart worms. Overall, this is a very cool one-stop (one-spot) treatment. It saves the time and energy of remembering multiple days of different doses of medications. We no longer give her regular tick/flea baths, give her Hartguard, apply a topical to her neck, and treat orally for ear mites. It is one squirt at the neck and DONE!! Her ears smell great, no fleas, ticks, or mosquitos! Finally, a product that does it all!