whatever the spelling you buy the spray at cabelas you spray it on your cloths not skin and it kills the ticks when they touch it.i make a whole setup.socks,overalls long sleeve shirt ,gloves and hat.the stuff last about 6 weeks and you can even wash it but i dont.i use this for my turkey gear and i also wear a leafy bug suit.we have TONS of ticks and i dont get bit:wink: