I am seeing reviews that have me wondering what people expect? Maybe read up on everything fully before complaining? Yes, you will still see fleas every time your dog goes outside if there are fleas out there. They will pick them up on walks and even at pet stores! They come I to your yard on other animals and on their own. Frontline is NOT a repellent. You also need to make sure you gollow the directions for application! Wait at LEAST 48hrs to apply if you have bathed tour dog as it travels via their natural skin oils and they need time to develop if they have been stripped away by soap/shampoo, as well as making sure you wait at least a week before bathing them after it is applied and make sure it is either a gentile baby shampoo or a ph balanced dog shampoo that does not have skin drying agents and says it is approved for use with flea treatment. Most good dog shampoo is these days. Dogs really shouldn't get more than one full bath (deep scrub) a month when possible. We use a natural ph balenced for dogs waterless shampoo in between baths as well as sensitive skin baby wipes if needed. If you live in areas with fleas outside (especially warmer, dry states like Oklahoma and Texas) they WILL get on your pet. However, they die after exposure to the Frontline, it usually takes about 24-48hrs to notice a difference when you first start using it if your dog is already infested. If you have a flea issue in your area then I recommend treatment of your yard as well! We had to treat our yard every summer and fall for the first 4 yrs we were here as the people next door to us have 3 dogs, chickens (in town smh) and other animals and I do not know if they use any kind of treatment and the people that lived in our house before us had 4 dogs and I do not think they used treatment at all because it was a nightmare in our backyard the first 2-3 years fighting them after we moved in. We have been here for 6yrs now and haven't had to treat our yard for the past year or two and we only have to apply Frontline every other month on our dog now. I still see a few fleas here or there once in a while at the beginning of summer (in our yard) and throughout fall usually (on our dog) if we have been out to the lake or to the park or something but that's all. That tells me that Frontline still works just fine. Anyone that has ever dealt with a true flea infestation knows the difference! They reproduce so fast that your whole house is overrun before you even realize they are a problem, literally in a month if left untreated they are everywhere, on furniture, all over your house, on you even, to the point you end up having to bug bomb your entire house (been there done that our first summer here, it was insane! I had never seen anything like it before). We have been using Frontline since on our 74lb dog(just the up to 88lb one), after extensive research on everything out there for flea control including the oral types our vet carries I still maintain that Frontline Plus is the absolute safest choice for those of us that do not like using things like pesticides/chemicals on ourselves, our yard or our pets unless absolutely necessary and prefer natural remedies when possible. Unfortunately, flea treatment is not one of those things you can go chemical free on. However this stuff is safer and harder to overdose than many of the other options and we will continue to use it!