The DDW stuff is intriguing. I have always used Scent Killer and spray the heck out of myself with it. One time I had a little gas on my hands from mowing grass and happened to have a bottle of it laying in the garage. Sprayed my hands with it and low and behold, after drying, the gas smell was almost gone. There was a slight trace of smell, but not too much. If it will do that with gas, it should work with human oder.