Both hubby and I had quite a few henna tattoos while away. One of hubbys was quite large on his arm, neither of us had any irritation what so ever.

As long as its henna meant for skin and not the one to die hair you should be ok. If you have sensitive skin mind you, id give it all a wide berth.

BTW couldnt access either of your links - made my puter freeze.

This is from the first link @ http://www.hennapage.com/henna/ppd/whoisppd.html

edit due to copyright but link does open

I heard a real horror story back in 2006 - see link below
GFF xx

http://www.holidaytruths.co.uk/viewtopic.php?f=60&t=67826&p=664458&hilit=henna#p664458

Spot on, Feelthevibe. No such thing as "black henna".

I am not against henna tattoos - me, my son and my daughter have all had them in Goa BUT!!! I'll never forget it! My daughter has slightly sensative skin, she'd already had a small tattoo early on in the holiday but on the last day decided to have another! She had a massive palm tree on her upper arm with Goa 2003 underneath. During the flight home and the next day (when she had a very important hockey match! her arm started to itch!) very soon she had a very bad rash and started feeling light headed, the rash spread all over her and straight after the match i had to take her to casualty! She was prescribed antibiotics and had them for a few weeks. Her arm scarred and she had Goa 2003 with palm tree for about a year and a half!!! Be careful! I wouldn't advise anyone to have one done! and it wasn't particulary cheap.

I have had several black henna tattoos done on Candolim beach by Anita. I have never had a problem. I did have one done on my first day by another beach seller and it was rubbish- Use Anita she is fab!

The subject of henna tattoos and potential reaction to them has been covered extensively a number of times on programmes such as Watchdog.

Something similar is the reaction some people get to hair dye.

it has also been discussed on the GHE forum here