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p- phenylenediamine

/p- phen·yl·ene·di·amine/ (fen″il-ēn-di´ah-mēn) a derivative of benzene used as a dye for hair, garments, and other textiles, as a photographic developing agent, and in a variety of other processes; it is a strong allergen, causing contact dermatitis and bronchial asthma.
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She believes it was a sensitivity to Paraphenylenediamine (PPD) that is used in most hair colour systems - and for which hairdressers should always perform a patch test.
The British Skin Foundation claims the temporary tattoos can contain a dangerous substance called paraphenylenediamine (PPD) which is found in some hair dyes and is illegal in the European Union.
Going a step further, Bulsara noted that L'Oreal, P&G and all hair color leaders are moving away from paraphenylenediamine (PPD) based formulations as they sometimes cause allergies for some consumers.
At her inquest Coroner Geoff Fell heard expert evidence which said the tattoos contained massive amounts of paraphenylenediamine (PPD) - the chemical in the hair dye which is thought to have caused her reaction - and that the tattoos increased susceptibility.
The association between prolonged occupational exposure to paraphenylenediamine (hair-dye) and renal impairment.
Zinc oxide (99%), stearic acid, N-oxydiethyl benzthiazyl sulfenamide (BSM), isopropyl paraphenylenediamine (IPPD), and sulfur were procured from local market.
The new regulations were imposed last year following a study on the harmful effects of black/coloured henna that contain a chemical called paraphenylenediamine (PPD).
Her family fear paraphenylenediamine in the dye caused an extreme reaction.
Some women hairdressers make henna by mixing natural henna and paraphenylenediamine (PPD), an aromatic amine used in everything from hair dye to body armor.
But some artists mix henna with a hair dye called paraphenylenediamine, or PPD, which can burn the skin.
The higher paraphenylenediamine sensitivity may be related to more extensive exposure through the use of dark hair dyes, Dr.
The textile dye paraphenylenediamine (PPD) is a common industrial allergen and can be found in some temporary tattoo inks.