I use Scentblocker and I believe it works to an extent. You still have to practice scent control by taking a scent free shower before each hunt and then spray down with scent killer. I'll do all that and then when I get into my stand, I will spray my face and hands down again. No matter how good any clothing says they are, you still have to play the wind because nothing will beat a whitetails nose 100% of the time.