I am copying and pasting this as my friend wants to spread the word. She is now allergic to a massive amount of things including the dye in jeans and newspaper print
The chemical is called PPD, and is in 99% of hair dye which makes hair DARKER, so if you're bleaching you should be fine. It is banned in at least 5 countries as it is a known killer.
If you have had a henna tattoo, or have any tattoos at all, you are in a VERY high risk category, and could die as a result of having PPD on your skin. If you must dye your hair darker, have TWO patch tests, behind the same ear, 48 hours apart. So patch test, 48hrs, patch test, 48hrs, if there's still no reaction at all, get your hair dyed.
There are four stages of allergic reaction, anaphylactic (sp!?) shock is a Stage 1, I had a Stage 4, and the consultant said had I not got to the hospital when I did, I would have been dead within hours. I had no reaction other than an itchy scalp for the first 24 hours, and then 48 hours later my face started to swell so fast that you could literally watch my eyes swelling shut. My heart beat was erratic and my internal organs shut down to cope with the reaction, and so the doctors couldn't give me adrenaline to combat the swelling, as this would have killed me. Instead I had to have oxygen tubes and a central line in my chest to get drugs into me fast enough to save me and try and stop me suffocating.
I am now out of hospital, but constantly shaking and on serious drugs for the next few months, and am still on constant "ambulance alert" and cannot be out of shouting distance of anyone as this could all happen again at any time. As a result of this reaction I will be allergic to all sorts of new things now - for instance, when I'm in hospital I'm put straight onto heart monitors as my heartbeat is still a bit erratic, and am having allergic reactions to the stickies they use to attach them! My poor skin is going bonkers!
I'm terrified of anything touching my skin that I don't know - so even stupid things like soap are a big deal now. I'm only using organic and natural soaps etc. that I know I've used before, and am having nightmares about not being able to breathe. I constantly feel as though someone has their hands round my throat, and check my face in the mirror all the time to make sure it isn't swelling again. I have two cracking black eyes, bruises all over my arms and legs from the amount of cannulas I've had in to get drugs into my system, and keep falling over like a drunk flamingo.
Please please please be careful - I had this done in a VERY good and well known salon, and to be perfectly honest, they've been absolute crap so I'm planning on taking them and the dye company to court and making sure this never happens to anyone again. I now have a year of drugs, shaking, hospital visits, exhaustion and not being able to just get on my horse and go hunting with my friends.