This bottle of deer dander scent by Team Fitzgerald covers human odors that may spook deer or other animals while hunting. Simply spray the scent on your clothing, including your boots and rifle or bow, to cover your scent. This will help keep your targets from getting away. This formula generally works on whitetail deer, blacktail deer, mule deer, moose, bears, and elk, among other species. It also contains no animal by-products.