We use Jarrow B12:
http://www.iherb.com/store/ProductDe...&pid=JRW-18001
We've been using this for at least a year, maybe more.
I had a problem with the Source Naturals Taurine in that I got a new bottle with the sticker on the lid and I had an old bottle with the same lot # where the label specifically said it was GF. When I called Source Naturals about it, they said there is no gluten in the Taurine but that it was run on the same line as something else with gluten in it so that since labelling laws changed they had to add the "contains wheat" bit and that their suppliers were supposed to put the label on all the bottles and my previous bottle must have just slipped through.
I personally am not going to buy more Source Naturals stuff until I know they've changed the label and are not just counting on a sticker on the lid. Also, since I buy most of my supplements online, I can't see if the lid has a sticker on it and I can't count on the description online at the various places I buy.
Rachel