I've used the kits off of ebay and have had wonderful results with them. Frontline Plus is what i buy and it works on my outside dogs.
But this doesn't seem to work on Tyke so I'm going for the k-9Advantix.
hope this helps. it is alot cheaper and if it works to keep fleas away i'm not going to complain.
__________________ I L ve My Sweet Tyke 
I can do all things through Christ who stengthens me. Phil.4:13 |