After getting busted, I fell into the marketing game with all the hype on the labels about how you need all the different scent control products to have a good hunt. So, I went out and spent a fortune on the full line of products from clothes to sprays and found they help in a situation when your out west somewhere in a remote camp and don't have an oppertunity to wash your clothes as often. (which I have been a few times) I have to admit, it made a difference to the human nose anyway!That being said, if you hunt locally, and can wash your cothes often, then I don't believe carbon makes much difference but you should still use body wash and spray.