RE: scent lock or scent block clothes
I think the scent block clothing certainly can help mask.
I hunted last year with a guy that had a really nice scent blocking suit and was also wearing so much "Old Spice" that my eyes were watering. I told him he was going to warn deer for miles and he ignored me.
He did not see any deer all season.
I hunt relative to wind direction. No cologne, aftershave or deoderant.
That said, I do use the scent blocking laundry and bath soap. It's cheaper in bulk than the specialized clothes.