The FDA had recently reported the danger with Henna – a
reddish-brown color ink, derived from plants, used for temporary tattoo. On the
market today, people have been seen using “black henna” instead of the
traditional dye. “Black henna” is a combination of henna and other ingredients,
usually containing p-phenylenediaine (PPD), which is used to create a longer
lasting temporary tattoo. However, PPD can cause dangerous allergic reactions
to users. It is not intended to be used on skin.
For more information, visit http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm343932.htm