Works great but you have to buy it every month until flea season goes away. My babies are more comfortable. They go outside and always bring a little buggers in.

My dog is no longer biting himself and the fleas are gone.

I put this on it 6 months ago and it has worked for me. My two Yorkie dogs have never had ticks or fleas. I don't know if it works if the dog is infected. but to prevent it is very good.

Worked great on my dogs

I had such a hard time getting rid of my dogs fleas. Tried so many things that nothing would work! My dogs also hate anything that looks remotely like something that squirts. This is the only thing for two years now that has actually worked for any of my three dogs and this worked immediately on all of them! It actually even worked longer then expected! I will not even look at anything else when it's flea dose time I am on Amazon ordering this exact medication there's no reason to waste my money ever again on flea medicine because this works it works immediately it's easy to use they don't even know we are putting it on them there's no smell so yes I absolutely recommend this if your small dog is even infested because mine was so infested they ate their fur off we put this on by the next afternoon they had absolutely not one flea on any of the three. I have three small dogs that was totally infested aggravated frustrated none of us could sleep! Now they all have all their fur and thank goodness I found and trusted to spend the money for this medicine because I have wasted tons of dollars thank you for this it's worth the money trust me try it whoever does will say the same thing!!