I have found none that work at all. Deer downwind .... you are "smelt". Read a great article in I think it was SA that spoofed the whole concept of eliminating human scent ... suits, washes, deodorants, bag storage. Used a pooch to find the "hidden"hunter. Dog did every time in about the same time ... 30 seconds or so! Nay knock down some, but I can't buy into total.