Hey everyone! So I told the BF that Hannah needed her flea and tick preventative and I've been using Frontline for as long as I can remember. Today I come home to see this Cutter flea and tick preventative sitting on the counter. He told me he bought it next door at the feed store and the guy told him that Frontline causes cancer? Yet the active ingredient in this Cutter stuff is permethrin which I've heard could cause seizures and is deadly to cats (we have 3 cats). I told him he needs to return it but like always I'm the one who is wrong! Anyone else heard of this cancer scare? I've been trying to google any information but I've come up with nothing.