safe inks

hi there all, Anyone used "diabolo genesis turbo black" made by deep colours the ink factory? I am having some work done soon & have found that these inks are the only ones in the world who seem to declare their ingredients on the net with full breakdown of composition & guarentees that they are not at all carcenogenic & they are totally safe. I know intenze looks good but it does still come with health warnings, anyway if anyone has used diabolo genesis turbo black i would like to know how it handles as my artist has never used it & probably thinks I am being over paranoid about ink safety, could it be used as a liner & to fill in small bits on quite a detailed piece. thanks supernova