I have tried a lot of different topical treatments, I like a lot of them. Now I use Bio Spot too, and like a lot + it is quite a bit cheaper than some other brands and if you have several dogs that matters lol.... I cant say I have seen any difference between the more expensive brands and Bio Spot, hmmmm I am not sure that other brands do prevent from ticks, but I cant say for sure. at another place on here, I think it was Bears mommy who is using garlic, I read up on it, and they say that is one of the best things to give, they use it on a lot of hunting dogs, that come in contact with both plenty of fleas and ticks. I will start giving all mine garlic too.
Marit