Henna Tattoos

I read in the New York Times about Henna Tattoos and the dyes that can be found in some Henna Products. Henna is a vegetable dye.In some cases you can find PPD added to the dye. PPD is only ok'd to use in hair dyes. PPD used in Henna can cause blisters and leave a dark pigment on the skin. To be aware Henna alone can also cause allergic reaction. As makeup artists test products like henna first on the inside of the wrist to watch for any allergic reaction.Also be aware of what is in the product you are using. You can find more information at the Food and Drug Administration.Information found The New York Times, By Nicholas Bakalar 2008