I have never used scentblocker but i plan on purchasing a suit next year. But one day I got off late one friday and didnt have time to get all that i wanted to get done. It was like 85 degrees that day and went out and got in the stand at like 5 30. I didn't spray any scent blocker, wore nothing on my face, and only a camoshirt and boots. Wound up taking a doe downwind 20 yards away from me. So there ya go...... But don't get me wrong that was ONE time and I will never do that again nor do I recomend it. Just got lucky I guess. But anyways I'm all for scentblocker haha , going to buy some this year!