I bought camo with the scent pro lining a coupld of years ago, and its care tag says to recharge, place in dryer on high heat for 30 minutes. And as to its effectiveness, I would have to say that since I got my camo, I have not been busted nearly as much from scent. It has happened, but it is very rare now, whereas it used to be a somewhat regular occurrence. Maybe i have just started paying attention to the wind or something, but either way, i think the scent control systems do help.