Never had any luck with it. I really feel the deer are being educated more and more by us. Anything that is not a natural scent a deer is use to ,I dont use. I never seen a vanilla crop in my woods so I dont use it. Example. I moved to South Texas in the eighties. Bought property to hunt on. Down there you can put out feeders. So I thought I would put out some juicy apples for the deer.I wanted to see what was around the area. I sat in my deer hut and watched every stinkin deer and every other critter take a smell of that apple haven and turn and run away to never be seen again in days ???????? WOW was I stupid.There aint no apple trees in the whole county.They never seen or smelled a apple.So they reacted and there fear factor kicked in and they ran away.