Hi Thatgirl,
I hear you, I had done a post about that as I totally freaked when I saw it, brought back the stuff I bought, but THEN in search of a good adhesive tried Fixodent and loved it, BUT still worried about the zinc issue. So here are my trials with others....lol...it is fun, but takes patience....hope it helps.....
Keep posting, would love to see how others too use their adhesives!