I've decided to try these out.  It says they are no****erproof.  What happens if you sweat during a hard workout mid-day?  Should I try and time the patch 8 hours before a workout?  Any thoughts on this?  Also, do any of you take it off to shower and then put it back on?  Weird questions, I know.  Any advice appreciated.

once I take it off - it does not stick anymore.  so no taking on and off for me. 

I try it put it in a place that does not sweat as much... but if it does - o well. 

If i shower in a middle of the day -I just leave that patch on.  Hoping that I did not washed all from it. (just don't rub it or lather it...lol)

I also put my patch for more than 8 hrs at times.. just leave it on...until I shower.. 

I have sensitive skin - but those do not irritate my skin.

(edited to correct spelling) 

Thank you...and this made me wonder...I  could just wear it at night while I sleep??  There's an idea...I appreciate your quick response :)

I do - but then I have no problem sleeping. B12 and some other vitamins may make you more awake.. watch for that. 

This is good to know (about the sensitive skin). A lot of pharmaceutical patches use a lot of surfactant or a really detersive surfactant to act as penetration enhancers for their drug/active agent.

This can cause sensitivity problems.

You can also wear it while you're sleeping :). I tend to put it on and forget about it until the next day when I take the old one off and put on a new one. Sensitive skin here, too, and no problems. 

Thanks.  Perfect...thank you!

I used to use the patch birth control that stays on for a week at a time, and even though it was water proof it would start to lift on the edges if I wore it in chlorinated pools. I bough****er proof bandaids that I would put on top of the patch if I were going in a chlorinated pool or going for spray tanning, etc. Just an idea if you decide not to wear them at night.

Thanks, Melissa.  Great idea.

I have showered with them on and they stayed. I usually try to shower then put them on.