Absolutely not. One of our local new stations did a study on this a couple years back I think it was either WEAU or WSAW and had one of the news girls go out for a few days and sit in the same stand for those days. One day in Scent lock, the next day in regular old camo with scent killer and the next in plain clothes. She saw one or two deer with the scent lock. I think like 4 or 5 with scent killer, and beleive it or not she saw more in regular clothes with no scent killer. I cant remember how many were on the video footage. But to me no matter what you wear, if youre in the right place at the right time and play the wind right, youll see deer.