Isnt Mac Red Pigment eye safe? I know blood red or true red wasnt but I thought the original was...I may be mistaken.
*start rant
I do know that my father is a chemist and an environmental engineer (hazmat type of stuff) and that the most dangerous chemical spills are always red or like aqua blue...He always told me not to use products with red dye but I never listened..
But in comparing the 2 spills I saw, that were controlled by my fathers company, both were tankers and spilt on roadsides, one blue, one red, the red covered ducks and a pond and all the ducks died, and the blue one also covered some ducks and birds and they survived...Guess it depends on the chemical &/or dye too :\
*end rant