PE, has anyone done comprehensive testing of food dyes for sensitizing activity? I thought an easy way to do this would be to get some ortho film, dip it in the dye and let it dry out...and epose. What do you think?
Here in the US "McCormick Assorted Neon Food Colors" has 4 dyes in the kit. One of the bottles is FD&C Red #3 and from my research on the net is erythrosine.