Beware of synthetic hair dyes – Poisons Information Unit

by Carol Aloysius

The Head of the Toxicology Poisons Information Unit of the National Hospital, Dr Waruna Gunatilleka said hypersensitive users of synthetic hair dyes should be aware of the harmful chemical substances which could seriously undermine their health.

“Toxicity in hair dyes is mainly due to paraphenylenediamine (PPD), a chemical substance which is widely used as an oxidisable hair dye. It is a permanent dye that gives a natural look”, he told the Sunday Observer.”

The toxic effect of PPD depends on its oxidation and forms a base that is allergenic,(cause allergies) mutagenic (causes changes) and is highly toxic.”

Reactions in hypersensitive users when PPD comes in contact with the skin include dermatitis to the upper eyelids or ears and swelling of the scalp and face.

Allergic contact dermatitis may become widespread in the body as well”, he said.” Severe allergy to PPD could result in swelling patches on the skin surface (contact urticaria)”.

“Anyone who develops an allergic reaction to a hair dye should seek medical advice immediately. A delay could be fatal at times,” he said. “We highlighted this health risk during the National Poisons Prevention Week which concludes today. For further information phone 2686143 General Hospital.”

The Consumer Affairs Authority (CAA) and the Cosmetics Devices and Drugs Regulatory Authority (CDDRA) sources told the Sunday Observer they were conducting regular raids on beauty parlours due to the increasing complaints regarding sub-standard and unauthorised products including imported hair dyes. “Those operating without (CDDRA) licences and approval will have their businesses closed and licence cancelled”, they said.