This is effective on many parasites thus my most preferred treatment.
It not just treats fleas and ticks but also several other flea related issues.
This Product Is very good, it does what it says, I can honestly say my Dog MARK hasn,t had any fleas at all, there is no reaction with it to MARK , very pleased with it....
Haven't used Advantage Multi that many times on my dog but overall it's a decent product.
This treatment is splendid!