While I am far from an expert on Permethrin, a little internet search shows that it comes in different FORMULATIONS.
Permethrin may be Permethrin.
But as I understand it, and I may be wrong, they formulate it different ways. One way is a petroleum base, which is used to treat cattle, horses, etc. Thats not the stuff to put on your clothes.
But theres another formulation that made to stick to clothing. Thats what Sawyers uses.
Don't get me wrong; I think its great stuff and is a lot safer than tick bites and all the nasty stuff they carry. I'm going to buy some Sawyers this weekend at Dicks Sporting Goods.
I'm just saying that if you're gonna mix up your own stuff, don't use the animal formulation. Besides, you don't want your hunting clothes to smell like petroleum anyway.
I read earlier on the internet (the source of all wisdom and never incorrect) that it is a carcinogen. I could be wrong. I just know that if a tick crawls on treated clothing, that its not repeled, it DIES. Thats some deadly stuff. Half the folks in this country have cancer as it is.