Navigation Links
Allergy to hair dye increasing

Allergic reactions to hair dye are increasing as more and younger people dye their hair, warn researchers in this week's BMJ.

This can lead to dermatitis on the face and, in severe cases, facial swelling may occur.

More than two thirds of hair dyes currently contain para-phenylenediamine (PPD) and other related agents. During the 20th century, allergic reactions to PPD became such a serious problem that it was banned from hair dyes in Germany, France, and Sweden.

Current European Union legislation allows PPD to comprise up to 6% of the constituents of hair dyes on the consumer market, but no satisfactory or widely accepted alternatives to these agents are available for use in permanent hair dye.

Dermatologists report anecdotally that the frequency of positive reactions to PPD on patch testing is increasing. This was confirmed in a recent survey in London, which found a doubling in frequency over six years to 7.1% in a clinic for adults with contact dermatitis. This trend has also been observed in other countries.

Market research also indicates that more people are dyeing their hair and are doing so at a younger age. A survey in 1992 by the Japan Soap and Detergent Association found 13% of female high school students, 6% of women in their 20s, and 2% of men in their 20s reported using hair colouring products. By 2001 the proportions had increased in these three groups to 41%, 85%, and 33%, respectively.

Severe hair dye reactions among children have also recently been reported.

Wider debate on the safety and composition of hair dyes is overdue, say the authors. Cultural and commercial pressures to dye hair are putting people at risk and increasing the burden on health services.

It may not be easy to reverse these trends, however, as some patients have continued to use such dyes even when advised that they are allergic to them and risk severe reactions, they conclude.


'"/>

Source:BMJ-British Medical Journal


Page: 1

Related biology news :

1. Allergy battle could be won in five years, says scientist
2. Allergy cells can aggravate cancer and psoriasis
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/3/2016)... --> --> Fourth quarter 2015:   ... fourth quarter of 2014. Gross margin was 46% (32). ... Earnings per share increased to SEK 6.39 (loss: 0.49). Cash ... --> --> January to December ... 1,142% compared with 2014. Gross margin was 43% (31). ...
(Date:2/3/2016)... 3, 2016 ... the "Emotion Detection and Recognition Market ... Others), Software Tools (Facial Expression, Voice Recognition ... Regions - Global forecast to 2020" ... http://www.researchandmarkets.com/research/d8zjcd/emotion_detection ) has announced the addition ...
(Date:2/2/2016)... NEW YORK , Feb. 2, 2016 /PRNewswire/ ... Potentials of that Rising Market Are you ... new analysis forecasts revenues for checkpoint inhibitors. Visiongain,s ... world market, submarket, product and national level. ... Instead discover what progress, opportunities and revenues those ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... , February 8, 2016 ... ("Atlas Genetics" or the "Company"), the ultra-rapid Point-Of-Care (POC) molecular ... CE Mark its Chlamydia trachomatis (CT) test to be launched ... the IVD Directive (98/79/EC), the CT test is now cleared ... --> The launch of the io® CT ...
(Date:2/6/2016)... ... February 06, 2016 , ... Contact:, Abby Mitchell, ... Excellence in Education Sponsors Teacher Training Program , Bite of Science Dinner Event ... Center for Excellence in Education (CEE) will sponsor a Bite of Science professional ...
(Date:2/5/2016)... , Feb. 5, 2016  In the pharmaceutical industry ... a host of launch activities including the identification and ... launch activity is especially high in the oncology therapeutic ... Best Practices and the Role of Medical Affairs in ... focused on oncology therapies find better ways to utilize ...
(Date:2/5/2016)... February 5, 2016 Amarantus BioScience ... company focused on developing products for Regenerative Medicine, Neurology ... Pediatric Disease Designation (RPDD) from the US Food and ... MANF. MANF was previously granted orphan drug designation (ODD) ... Amarantus BioScience Holdings, Inc. (OTCQB: AMBS), ...
Breaking Biology Technology: