In Reply to: Henna tattoos posted by Bigpete3941andfamily on Saturday, 1. September 2012 at 14:03 Bali Time:
The main ingredient is a toxic dye, known as para-phenylenediamine (PPD). Google PPD and the allergic reactions to it. I don't think you would encourage your kids to have the tattoos once you've seen some of the revolting infections and scarring that has resulted.