I was at the meeting with their people at an Armenian restaurant many years ago when Paul Brunner and us adapted it for hunters. That Armenian meal was special! I used the foot formula on my arms for many years. The foot formula was stronger and unscented. It worked great for maybe five years but I eventually started breaking out under my arms due to an allergic reaction I suppose. I quit using it for several years and then gave it a try again. Interestingly, I broke out again. Maybe the arm formula would work but it is scented until after you shower after application. Interesting stuff. Seems like the Russian military had something to do with the formula as well.