After 3+ years, I still get bromide excretion. Don't take Iodine every day like I used to, just a huge dropper full once in a while. Nice arc of zits under my cheek last week.
As for storage or outside exposure, I think it's both for me. When I color my hair or use a depilatory, I get a chemical odor coming from my underarms. I know I *should* forgo the chemicals and rock the cavewoman chic but at least it's passing right on through... :-)
I'm a newbie, what about the other old timers? Wombat??