don, t know where the company is -but known worldwhide -but sergeants flea control nearly killed my little dog -it is poison and kills very painfully and sureley .My Vet tells me there are many cases like this but most are not so lucky like little Spicky -after treatment and a bath in dawn dishsoap he is finally getting better ( 26 houres )
the product needs to be taken off the market----
it is very poisones