Scent control is optional. I can confirm it does not work. Heck , most people think most of there scent comes from underarms. They do not even think of behind the ear lobes scent glands or the other 5 that humans have.
Out with DNR tracking a guy through the woods. Dog catches him and ends chase. Bad guy says, how did you find me? We told him we didn't, the dog did. Bad guys says that is impossible, I have me scent block camo on. well, a dog tracked him for about a mile and ran right to him.
Bottom line. Is watch the wind. The wind will stop most scents if your paying attention to its direction.
If you do not pay attention to the wind, the animals are paying attention to you.