The first time I used it was on a canoe trip in Canada. I couldn't read the label, but I knew that I did not want it on my skin, so I sprayed it on my clothes and just a little on my dog's back. The first canoe trip that nobody had any ticks. The first time I used it turkey hunting was the next spring, this time I followed the directions. A turkey was up the hill from me and a tick was walking up my pant leg. The tick got to about my pocket stopped and then fell on the dirt, stone dead. Permethrine is dangerous, and to think it is the active ingredient in that stuff I streak down my dog's back for fleas and ticks. Why is it okay to dip a dog in it for fleas and humans have to make certain it is dry before they put their clothes on? My vet did have a good answer, as in none.