Any cover scent used is intended to not only "cover" but to take the focus off of your scent, so your stink isn't the main focus and doesn't raise an alarm. If it didn't work the Indians and old Trappers wouldn't have made and used them. I have had scenarios both ways over the coarse of 35 years of hunting and know for a fact scents work. Maybe they don't completly cover, but they take the focus off of you. SteveBNy I don't know why your so negative on scent. You can't just use scent, you have to do everything else along with it, shower, wash your cloths and spray down. Cover scent and attractents are tools to use along with others.