There are many temporary tattoo artists that
maliciously brand their "henna ink" as "Black
Henna". It's called PPD, short for P-PhenyleneDiamine.
This is a poisonous chemical ingredient often
used in low quality hair dye.
Henna is never black! It
reaches a deep
brown color close to black
on palms & soles only! So, please don't be
fooled by those who want you harm!
We estimate about 20% of the population at
large is allergic to this chemical, when applied on the skin.
These are the individuals who are prone to get scared for
life with a PPD application. This is not including other side
effects PPD has on the liver and other parts of the human
body!
Below are links to medical articles you should
read if you think of getting a "black henna" tattoo.
They are good reference to print & take with you to the
doctor's if you think you have been a victim of this poisonous
chemical.
Swiss
Medical Weekly 2001
Medical
Journal Article 2000
You can read more Scientific
and Historical
facts about natural henna here