Great Stuff...$10 for 3 months. I have used Bio spot for 5 years on my three dogs and I have never seen a flea or tic on them. I also use the Bio spot Shampoo. My vet had nothing bad to say about bio spot...He did say its old technology... but it still works.
My all time favorite is Advantage. (Buy it online it's cheeper.) To me it's the SAFEST for your dog. I believe they have a flea and tick medication now, but if not then use frontline. This is just my opinion!!