Stumpy ,
does your dryer achieve temperatures exceeding 1,500 degrees ?
If not , then it isn't "reactivating" anything but your wallet . You can't reactivate carbon at home . At best you'll cause a small amount of the odor causing stuff to vaporize , but then it's just gonna get distributed to a larger percentage of the garment .

Carbon is great for supressing odor , but it doesn't work forever no matter what ScentLok told you . Ask anyone who owns an aquarium , the charcoal they put in their filter is the same thing that's in your hunting clothes , and it most definitely has a limit to what it can adsorb . If it didn't have a limit the charcoal suppliers would quickly go out of business . There have been several threads on ths subject in the recent past , search one out and judge for yourself .